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Astronomy Wise is a free online Astronomy Magazine
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1
www.astronomy-wise.com
Magellanic Clouds
The Night Sky
Budget Astronomy
Earth V Thea
WHAT’S NEW
November
2012
AW
Meeting 9th Nov
stro
nom
y W
ise
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www.astronomy-wise.com
Mike Greenham: Andromeda with the Canon 500D and
Skywatcher ED100. 90 to 240 second exposures @ iso800 giving a total of 120 mins
Cover Image: Mike Greenham
Contents 4. Public Viewing Night 6. Competition 8. Earth Verses Thea 10. Rouges Gallery
22. Lets Talk.. Paul Rumsby Interview 26. The Seven Sisters 32. Magellanic Clouds 38. Solar Flares 42. The Night Sky 48. Pulsar PSR B1509-58 50. Occultations
54. Budget Astronomy 56. Astronomy In The Community 58. Book Reviews with Paul Rumsby & Edward Dutton 60. Android App Review 62. Astronomy For The Young Astronomer 66. The New Race To The Moon Who Are We?
David Bood: Editor Co founder
Jason Ives: Co Founder
Credits
Heather Dawn Earth V Thea
Chris Almey Budget Astronomy
Andy Devey Photographing Solar Flares
John Harper The Night Sky, Occultations,
Seven Sisters
Pepe Gallardo Pulsar PSR B1509-58
Chris Almey Budget Astronomy
Paul Rumsby Book review
Edward Dutton Book Review, Logo, Design
Jason Ives Rouges Gallery, Astronomy For
Young Astronomers
David Bood Editor, Magellanic Clouds, AW In
The Community, Apps Review, Design
Zantippy Skiphop, The New Race To The
Moon
Who Is This? Each month we will bring you our regular writers. This month we have Andy Devey
from Solar Explorer www.thesolarexplorer.net . Andy has a passion for our nearest
star, Sol, The Sun. Each month you can find Andy in AW talking about all things Solar.
Have a look at his site which as some fantastic images.
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www.astronomy-wise.com
Welcome to another edition of Astronomy Wise
online magazine. Well the end of the year is rapidly approaching. The nights are drawing in and
the clocks have gone back one hour here in the UK.
Last month Astronomy Wise hosted it’s first public
event in Sawdon North Yorkshire. Each month, the 2nd Friday, we will be hosting our free viewing
night.
We have a new email for sending those images to Rouges Gallery [email protected]
For new readers the links in this EZine work, just
click and you will be taken to the page, video or
image.
A big thank you to all who write, send in pictures
and read the EZine. October was the best month yet for viewing figures with just over 5000 people,
reading or downloading the publication.
For those who do want to come along to our
viewing nights page 4 has more details.
So thank you for reading and we hope you enjoy
this next edition, if you have any comments
please email me at [email protected]
Mike Greenham: Andromeda with the Canon 500D and
Skywatcher ED100. 90 to 240 second exposures @ iso800 giving a total of 120 mins
Cover Image: Mike Greenham
Credits
Heather Dawn Earth V Thea
Chris Almey Budget Astronomy
Andy Devey Photographing Solar Flares
John Harper The Night Sky, Occultations,
Seven Sisters
Pepe Gallardo Pulsar PSR B1509-58
Chris Almey Budget Astronomy
Paul Rumsby Book review
Edward Dutton Book Review, Logo, Design
Jason Ives Rouges Gallery, Astronomy For
Young Astronomers
David Bood Editor, Magellanic Clouds, AW In
The Community, Apps Review, Design
Zantippy Skiphop, The New Race To The
Moon
Who Is This? Each month we will bring you our regular writers. This month we have Andy Devey
from Solar Explorer www.thesolarexplorer.net . Andy has a passion for our nearest
star, Sol, The Sun. Each month you can find Andy in AW talking about all things Solar.
Have a look at his site which as some fantastic images.
4
www.astronomy-wise.com
Astronomy Wise
Public Meeting
ALL WELCOME
FRIDAY 9TH NOVEMBER
Sawdon Village Hall Nr Scarborough North Yorkshire
Sawdon, North Yorkshire YO13 9DY
COME AND SEE THE STARS WITH ASTRONOMY WISE PUBLIC VIEWING NIGHTS, FREE AND FUN FOR THE FAMILY!!
LOCATED IN THE DARK SKY AREA OF SAWDON FOR THE BEST STARGAZING!
EVERY 2ND FRIDAY OF THE MONTH
CONTACT 07951649024 FOR MORE DETAILS
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www.astronomy-wise.com
Well I hope you have enjoyed the October Edition. So for the first time, Astronomy Wise is hosting it’s first competition.
The prize is 3 signed books (as shown above). All you have to do is answer this question.
”what is the closest star to Earth”
Rules: i. Open to UK residents only ii. Answers must be emailed to [email protected] iii. All correct answers will be placed into a bucket and drawn
out iv. Winner must take a photo of themselves on books for the
EZIne v. Winner will be notified by email and/or phone vi. Email Subject line: Astronomy Wise Competition
Good Luck! Closing date 15th November 2012
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www.astronomy-wise.com
Earth Verses Thea One clear starry night as I was sliding into my night gown I got to thinking about our Moon and how it came to be Earths companion, I poured myself a red wine and
began to ponder!
For those that didn't read my previous article I touched upon how the Moon may have been made, it is some planetary academics belief that another planet called
Thea followed Earths path within the goldilocks zone billions of years ago when the solar system was forming, its discussed how they shared the orbit around the Sun
and eventually Earth and Thea caught up with one another and crashed. Thea was supposedly a smaller planet around the size of Mars that hit our early
Earth at such an angle that luckily both planets didn't shatter to pieces but formed like two twin like planets, the impact of the collision shot out enough debris to
create what we see today as our Moon which sits astronomically close to Earth. Whilst thinking about this in some detail I also started questioning if this planet
Thea that hypothetically impacted Earth at the time could have had some means of
life, whether intelligent or microscopic and could it have possessed oceans and an atmosphere at the time it apparently hit our planet? Well given the solar systems so
called temperament of vast heat and violent collisions back then it would seem unlikely at best that Thea could have supported life, saying that though I also
wondered at this point why Earth harbours such a various and interesting amount of life in this day and age and the Moon is apparently dead given the fact they are
both in the goldilocks zone ,meaning potential habitat zone, and being so relatively close to one another.
Planet Thea is to some a theoretical atom bomb that collided with our earth billions of years ago but I contemplate whether it
could have been our home Earth that actu-ally bombarded Thea! I'd like to point out
now that this theory regarding the Moon being formed from a huge celestial crash
of planets is still hypothetical. Apparently
since the Moon has been with us it has remained largely unchanged and human
understanding of it and how it has evolved has altered over the years and thanks to
new measurements from the Lunar Reconnaissance Orbiter and our landing
we have new views of its surface but this does still leave an open question on how
exactly it came to be! I hope that certainly in our lifetimes given
the technological advancement we will determine how the wonder of the moon
came to be and if indeed it was a planet that attacked us all those years ago but until then we have our binoculars,
telescopes and eyes to view, appreciate and guess.
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Luckily whatever actually happened all those billions of years ago these two bodies
now seem to be in an alliance, I for one am grateful for the Moon as it now helps harbour life on Earth such as you, me and above all our questioning minds! Keep
looking up the answers are a moment away...
Heather Dawn Freelance Writer
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ASTRONOMY
Recent Discoveries & Developments
From the Reviews:
This book is packed with interesting new
topics in easily readable chunks.
No maths, just plenty of illustrations in glori-
ous colour, sprinkled with explanations and
anecdotes.
An excellent read for kids and grown-ups
alike, ideal for browsing on a journey.
Can't wait for the next edition…
…Margarita
Although the lifetimes of stars and galaxies are played out over hundreds and thousands of mil-
lennia, the field of Astronomy itself is fast paced, with hardly a week going by without a new dis-
covery or development hitting the headlines.
This book delves into the most significant, ground breaking, headline making stories that have
come out of Astronomy throughout 2011-12 and presents them in an easy to read, easy to under-
stand format.
The Perfect Introduction
The Perfect Catch-up
Available from Amazon in Kindle and Paperback Formats
For more information go to www.paulrumsby.com
Facebook page: www.facebook.com/AstronomyRecentDiscoveriesAndDevelopments
Follow the Author on Twitter @PMRumsby
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Paul Halperns new book ‘Edge of the
Universe’ A voyage to the cosmic horizon and beyond.
The universe is a vast and complex
place. It is full of mystery and wonder. We can peer out into the
galaxy from our back gardens with small telescopes and see the stars and planets.
However have you ever thought when gazing up
how did this magnificent spectacle begin? How big is the universe? Is there more than one Universe?
Like you I have asked myself these and many more questions.
Dr Paul Halpern who is an American Professor of Physics and a well publisher author may have the
answers I am looking for. I downloaded the book onto my Galaxy Pad, using
the Kindle app from amazon. Firstly the book is well laid out and easy to follow. It is not over
complex and the beginner to Astronomy and those with an interest of the universe will quickly be
absorbed into the pages. We soon learn that the universe is full of dark energy and dark matter.
There are ideas on multi-universe and unseen dimensions.
Download this book, buy this book in traditional form, which ever you choose get yourself
comfortable and begin your journey to the cosmos.
Astronomy Wise Rating 5/5
http://edgeofuniverse.com/
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Another month is here and we are
heading towards the end of 2012. This month I have pulled together another
interesting interview. His book has featured in our pages and one is up for
grabs in our competition, so Astronomy Wise is pleased to announce Paul
Rumsby.
AW: Paul when did you become interested in astronomy?
PR: I honestly can’t remember…I think I must have been born interested. I grew
up in some remote parts of Norfolk, the son of a gamekeeper, so experienced
very dark skies from childhood. I remember going out at night to the
outbuildings on errands for my father and standing for the longest times,
enthralled with the stars above, totally lost in the beauty. I can recall buying
my first telescope from Exchange and Mart when I was
around twelve; it was a tiny little thing on a miniature tripod, a toy pretty much. Growing up during the sixties
with the space race and the first lunar landings all had a huge influence as well, I just loved it all.
AW: What made you start reviewing books?
PR: I started a web site called Best-Astronomy-Books in
2009 and was searching for original content for the site. I didn’t just want to use other peoples work so I
contacted a couple of
publishers to see if they would let me review a
book or two. Since then I have had a constant
stream of astronomy related books through my
door. Fantastic! I get most of the new releases,
especially from Spring
Books who publish a large
number of titles on a wide range of subjects, from
Planetary Science to Cosmology. More than I
can handle at times. I have been lucky enough to
interview some of the authors as well, which I
have particularly enjoyed.
My favourite was Michael
Carrol who is not only an amazing space artist but
has also written some great books, I interviewed
him after the release of his title ‘Drifting on Alien
Winds’, a look at the atmospheres of planets to
which we have sent
Contact Paul via:
Twitter; @PMRumsby
Facebook; www.facebook.com/paul.rumsby.9
His website; www.paulrumsby.com
Emai; [email protected]
Astronomy – Recent Discoveries is available on Amazon
The books facebook page;
www.facebook.com/AstronomyRecentDiscoveriesAndDevelopments
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probes. His art work also features in the book which
adds a nice feel to it, something different.
AW: Astronomy – Recent Discoveries your new book, how did it come about?
PR: Having reviewed many books on astronomy I
found that the contents were always specific to a certain subject, sometimes quite broad but always
focused. In three years I had not come across one that just provided an update across the entire
spectrum. Astronomy really is fast paced, news stories come out nearly every day, scientific papers detailing
new discoveries and developments are constantly being published, for the interested person its difficult
keeping up with it all. I thought there was room for a
book that did just that, provide an update, in easy language that everyone could understand.
I concentrated on an eighteen month period from early 2011 up to the time of release. The book is
available in soft-back and Kindle formats, I was surprised how well it transferred to the kindle, I didn’t
think a non fiction title of that type would work. I thought the images and diagrams would be small and
horrible but they actually look good, they are zoomable as well, something you obviously don’t get
with a book. Whether I succeeded with the book is up to the reader to say but I’m reasonably happy with it.
I think the second edition will be better, I have a few ideas I’m playing with.
AW: What is your favourite object in the night sky?
PR: Now that’s a question. I’m tempted to answer The
Night Sky but I guess you’ll want more than that. Ok, naked eye? It has to be Orion; on a dark winter’s night
is there anything more stunning? Through a telescope? Saturn. With a steady atmosphere Saturn
takes the word stunning to a whole different level. I can’t actually think of a word to do the view justice,
it’s something everyone on the planet should experience. My all time favourite? The one object I go
back to time and again? M42, the Orion Nebular, I just love it. Its great to observe in binoculars or a tele-
scope and it’s a great target to image. I particularly
like the core stars, the Trapezium.
AW: What equipment do
you use when viewing?
PR: My main telescope is a Meade LX200 14” GPS
Catadioptric and I have the usual assortment of eye
pieces, filters and barlows. I use a DSI II imager for
deep sky photography and a web cam for lunar and
planetary targets. All this is housed in a home built
robotic observatory which I have been working on in
between work and other
commitments. The observatory’s not
complete yet but hopefully will be soon. The aim is to
be fully automatic, from
checking the weather to
running a scripted imaging session unattended. I have
been fortunate that a friend and neighbour, who
recently retired as an Engineer on the Joint
European Torus (JET) fusion reactor, has been
helping with the electronics and design elements. It’s
an interesting project but has taken a frustratingly
long time to do. At the other end of the scale I
also have a pair of
binoculars, a Christmas present from my partner,
which are great for grabbing and heading out-
doors on a clear night for half an hour. It is quite
amazing just how much you can see with a
reasonable pair of binoculars.
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AW: Did you study astronomy or
Science at college, university?
PR: Unfortunately no, but I am currently studying Astronomy and Cosmology at
degree level at the Open University. There is a but though, maths was never a strong
point and I have reached that point where maths is everything. I didn’t know some of
this stuff existed let alone be in any position to understand it. So to progress my studies I
need to go back and bring my maths up to speed which to be honest is daunting. I am
anything but a mathematician, I wish I was because I’m fascinated by it, it’s just so hard
AW: Tell us about your career so far?
PR: Not glamorous I’m afraid. When I left school I had to work as my parents had re-
cently separated, times were difficult, hence no collage or university education. I had a
lust for travelling and spent five years wandering around Europe, North Africa and
the Middle East in my early twenties. I lived in Israel for a year and in Gibraltar for two
before coming back to the UK and settling down. Since then I have worked for a
company that design and manufacture marine glazing solutions for luxury yachts. I
am currently their Business System Engineer
maintaining and improving their manage-ment systems. I enjoy my work but would
love to have had a career in science, preferable Astronomy. Still it’s never too
late. I just need to apply myself to getting my degree and who knows, my latter
working days may yet be in an observatory somewhere. If that doesn’t happen amateur
Astronomy is great anyway; there is so much worthwhile research that amateurs
can do these days and the equipment that is available is amazing if you have the
resources to purchase it.
AW: Suddenly space exploration seems
to have been thrust in the headlines with Curiosity, China and companies
like SpaceX, do you think it will take a
global effort to get beyond
the moon?
PR:I do. Some of the best missions since the moon have
been international collaborations. Curiosity, for
instance, is thought of as a purely NASA project but many
of its instruments are collaborations. The Dynamic
Albedo of Neutrons (DAN) instrument for detecting water
at or near the Martian surface is a great example of Russian-
American collaboration. Other
instruments come from Spain and Finland. Germany
contributed several million dollars to the budget. It’s good
to see that whatever else is happening in the world science
seems to be able to rise above it. With commercial companies
now beginning to provide services such as SpaceX’s
resupply missions to the International Space Station the
future of space exploration will become more of a global effort
than ever before. World eco-
nomics will play an increasing role as national science budgets
are cut and organisations are forced to collaborate with
others. This year at COSPAR, the committee for space
research, we saw China and America agreeing to pool
resources in future missions, something that seemed
impossible just a few years ago. Indian and Japanese space
programs are gathering pace. When the six large space
agencies get together, along
with commercial companies, who knows what will be
achieved. A manned mission to
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Mars in twenty to thirty, certainly forty years doesn’t seem out of the question.
AW: How do you think social media has improved astronomy?
PR: Well it’s certainly made it accessible to a huge number of people. Joining
groups and participating in events has never been easier. For some it will never replace going out and meeting like minded people at clubs, groups and lectures
but that isn’t everyone’s cup of tea and for some it’s physically difficult. It really is a fantastic resource. There is also a personnel aspect about social media that I
find almost incredible, I recently - via twitter – had a conversation with Carolyn Porco, leader of the imaging team on the
Cassini obiter, something that just isn’t possible normally. I asked her what it was like to
literally have the best job in the world; “actually” Carolyn replied “it’s the best job in
the Solar System”. Most mornings one of the
first things I do is have a quick glance through recent postings on twitter and facebook etc.
This morning, over a coffee, I caught up with the Curiosity rover on Mars, images of the
scoop marks in the Martian soil where Curiosity had taken samples, were waiting on my
desktop. I checked out numerous images, some from amateur astronomers taken a few
hours before and others from Earth orbiting telescopes and bizarrely, discovered that a man
wearing a dress had been acting improperly on a Lincolnshire train!!
The internet in general is amazing; researching a subject has never been easier or faster. Sites like the SAO/NASA Astrophysics
Data System (ADS) are staggering, holding something like 8.9 million records on
Astronomy and Astrophysical papers, entire lifetimes of reading, on a single web site. Mind Blowing.
Many thanks to Paul for taking the time to answer our questions. We wish him all
the best with his new book. Finally here are those contact details
Contact Paul via: Twitter; @PMRumsby
Facebook; www.facebook.com/paul.rumsby.9 His website; www.paulrumsby.com
Emai; [email protected]
Astronomy – Recent Discoveries is available on Amazon
The books facebook page;
www.facebook.com/AstronomyRecentDiscoveriesAndDevelopments
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The Seven Sisters
By John Harper
‘Many a night I saw
the Pleiads, rising
through the mellow shade,
Glitter like a swarm of fireflies tangled in a
silver braid.’
Beautiful words written by Tennyson,
to be found in his book ‘Locksley Hall.’
These words so aptly
describe the Pleiades star cluster, which
during this month
may be found in the late autumn sky all
night long. When I first started being interested in astronomy many years ago, my first attempt at finding the ‘Plough’ ended by my ‘discovery’ of the Pleiades! For a
while I thought that this small, tightly packed arrangement of stars I was looking at, was indeed that well known signpost in the sky, made up of seven stars, called in
America ‘The Big Dipper’. What I had spotted was perhaps one of the finest star clusters in the entire sky. I later found out that these closely knit stars had excited
wonder and interest since the earliest days of civilisation. They were an object of veneration to the Chinese and were first mentioned in oriental writings as early as
2357 B.C. They also figure in the writings of many other civilisations such as the Japanese, Egyptian, Hindu and Aztec. Mention of the star cluster occurs also in the
writings of Sappho and Euripides, and has a mention in the Bible too.
In classical mythology the Pleiades were seven sisters, the daughters of Pleione and
Atlas, who were bathing one day by a pool of water in a clearing at the middle of a small wood. As they were splashing about, enjoying themselves, the great hunter
called Orion arrived on the scene and startled the girls. Fearing for their safety, they called to the king of the gods to intervene and save them from the hunter’s
attention. Zeus obliged, and turned them into doves, and as such were able to escape the at-
tention of the hunter by flying away up into the sky. Unfortunately, the girls did not know when to stop and flew even higher into the realm of the stars, where they
froze together in the coldness of space, and were turned into stars themselves! Later their mother Pleione, and Atlas their father, were both placed with them too,
completing the family group. The names of the sisters are rather beautiful and can be seen on the accompanying graphic, so if you are stuck for a less than common
name for your newly born daughter (if you have one of course!), here you have seven unusual names to choose from, as you can see!
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In reality, the Pleiades known also as Messier 45 to astronomers consists of very
hot, rather young stars, only around 50 million years old! So, compared with our star, the sun, which is 4.500 million years old, they are ‘cosmic babies’, that were
not around when the dinosaurs walked on the face of the earth. It appears that these stars formed from a huge gas and dust cloud. Remnants of this cloud can be
seen well in long exposure images of the cluster, illuminated by these fiercely hot, blue white suns. The cluster lies over 400 Light years from us and occupy a vast
area of space, some 12 light years from end to end (1 light year is approximately 6 billion miles!).
Look for the Pleiades in the eastern sky at around 7pm during the month and see
how many stars you can count in this nice compact group. Most people can see around six or seven stars, but some keen sighted people claim to have seen as
many as 14 stars. Through binoculars, the cluster looks magnificent, when up to 50 stars may be seen in the field of view. If however, when you look in the direction of
the Pleiades, you see a patch of fuzzy light only, then it may be that a visit to the
optician is recommended! Enjoy spotting the Seven Sisters!
Graphics generated using Stellarium software: www.stellarium.org
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Going south………...
When we gaze up and look at the
wonders above our heads, we may gaze in awe at the thousands upon millions
of stars. Here in the northern hemisphere we can point out familiar
constellations and objects. But this is not the whole picture, imagine we could
jump on a plane and travel south. So far south that we land in the Southern
hemisphere. Two objects that are not present in our northern hemisphere
skies are the Magellanic Clouds. We have the Large Magellanic Cloud (LMC)
and the Small Magellanic Cloud (SMC).
These clouds on a clear night can be
seen by the naked eye and have been described has glowing clouds. They
could be thought to be small bits of the milky way that have broken way.
However research has found that these clouds are in fact recent arrivals and are
themselves small galaxies.
The Tarantula Nebula
in the LMC.
Image from Stellarium
So What Are They? The Magellanic clouds are dwarf galaxies or irregular galaxies (Irr). It is thought
they formed around the same time as our own galaxy (Milky Way) some 13 billions years ago. The LMC and SMC lie about 22° apart.
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Irregular (Irr) galaxies are not
uniform or regular in shape. They are mainly small and faint. They
Contain gas, dust, nebulae and young stars.
Composition
The clouds are not only different in size to our
own galaxy, but also composition. They are gas rich, a higher proportion of their mass are
Hydrogen (H) and Helium (He) in comparison to the Milky Way. There is also less metal
content in proportion to the Milky Way.
Large Magellanic Cloud (LMC) (Image Left)
The LMC in astronomical terms is almost next
door to our own galaxy. It’s luminous area is
5° across or 14,000 light years in diameter. It sits at a distance of about 160,000 light years
from Earth (Britannica). The LMC was a host to a supernova 1987a which is located just
outside the Tarantula Nebula. Large Magellanic Cloud in an optical image
taken by the Blanco Telescope at the Cerro
Tololo Inter-American Observatory in Chile.
The bright nebula at the top of the image is 30
Doradus, also known as the Tarantula Nebula.
NOAO/AURA/NSF
SN1987a exploded
in the LMC on the outer edges of the
Tarantula nebula some 160,000 plus
years ago and the light reaching earth
on February 23rd 1987.
Source:
Circumstellar rings around SN 1987A,
with the ejecta from the supernova
explosion at the
center of the inner ring. Wikipedia
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Small Magellanic Cloud (SMC)
The SMC is 2° across or 7000 light years in
diameter. It sits about 200,000 light years from Earth. The galaxy contains a central bar structure
and is thought to be once a barred spiral galaxy.
The SMC forms part of the local group. The local group consists of 54 galaxies
which include the Milky Way.
Image Left: SMC taken bt the Digital Sky Survey.
Below: Panoramic Large and Small Magellanic Clouds as seen from ESO's VLT
observation site. The galaxies are on the left side of the image.
Background Image:
SMC NASA HUBBLE
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Light Year (ly) A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10
trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers. The Crab supernova remnant is about 4,000 light-years away.
The Milky Way Galaxy is about 150,000 light-years across. The Andromeda Galaxy is 2.3 million light-years away. Information NASA Information
Credits: Britannica Encyclopaedia http://www.britannica.co.uk/
NASA http://www.nasa.gov/ Wikipedia http://en.wikipedia.org/wiki/Main_Page
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Solar flares – tips to increase your
chances of photographing these
spectacular events!
By Andy Devey
www.thesolarexplorer.net
Never point a telescope at the Sun unless you
have fully considered and taken all the
necessary safety precautions! There is a whole
page devoted to safety measures at the top of
my website.
Hi Guys, for November 2012, I thought I would
briefly cover multiple stacking techniques in
hydrogen-alpha and then show you how to increase
your chances of imaging a solar flare and recording
one of the largest explosions in our solar system.
Double and triple stacking a
hydrogen alpha telescope
I mentioned in my article last month that I would
cover double and triple stacking systems using
hydrogen-alpha light. When you buy a dedicated
solar telescope its initial band width will be stated
as for example <1Å this means that the wavelength
of the light that is allows through is within one
billionth of a metre and tuned to the hydrogen-
alpha spectral line [a specific red visible spectral
line created by hydrogen with a wavelength of
656.28nm that occurs when a hydrogen electron
falls from its third to its second lowest energy
level]. To get under <1Å is more expensive with
most of the larger commercial solar telescopes
delivering <0.7Å however if you wish to get more
contrast and crisper detail in your photographs you
will need to get to <0.5Å and to achieve this you
will need to double stack your solar scope. This
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simply means that you are combining two dedicated filter units normally at the front
end of your telescope to reduce its band width to the lower level but this also
reduces the brightness of the image delivered and this will also affect the speed of
your camera during imaging. This double stacking is proportionally more expensive,
so I recommend doing your internet/forum research before spending your money!
Triple stacking is achieved using 3 units and in many cases is not practical as the
image will be too dim to photograph. I have managed to achieve triple stacking and
there is a write up on my website.
Solar flares
A solar flare is a sudden brightening that can be observed over the Sun’s surface or
on the solar limb. There is no doubt that hydrogen-alpha light is by far the best
medium to observe a solar flare with Calcium K telescopes/filters coming in a close
second. White light solar flares are very rare and it is only possible to see/capture
the very largest X-class flares in this medium.
Solar flares are caused when a contorted magnetic field suddenly shears and
reconnects causing a huge amount of magnetic energy to convert into heat. They
can also be followed by enormous coronal mass ejections [CME], slinky post flare
loops structures or even shock waves [Moreton waves].
There is a classification system that divides solar flares according to their strength.
The smallest ones are A-class (near background levels), followed by B, C, M and X.
This scale is similar to the Richter scale for earthquakes and for solar flares, each
letter represents a 10-fold increase in energy output. An X is ten times an M and 100
times a C. There is a finer scale from 1 to 9 within each letter class but there is no
upper limit for the largest X-class flares. The highest ever recorded solar flare over-
whelmed the sensors on 4 November 2003 at X28 with some scientific papers as-
signing it at a level as high as X45! Any solar flare above an X10 is often referred to
as a super flare!
The vast majority of solar flares occur in the vicinity of active regions with a small
minority resulting from prominence/filament eruptions causing ribbon flares. Within
the active regions there is a classification system that serves to indicate its potential
for developing flares. In general there are more flares associated while the area is
growing in magnetic strength as opposed to its declining phase.
Photo 1 M.7 solar flare on 8 September 2011 photo at 15:57UT
Photo 2 a small limb flare on 12 September 2012 at 09:35UT
Photo 3 close up of a small flare on 6 October 2012 at 11:22UT
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α A unipolar sunspotgroup. Alpha
β A sunspot group that has a positive
and a negative polarity (or bipolar) with a simple devision between the
polarities
Bèta
γ A complex region in which the posi-
tive and negative polarities are so ir-regularly distributed that they can't
be classified as a bipolar Sunspot group.
Gamma
β-γ A bipolar sunspot group but complex
enough so that no line can be drawn between spots of opposite polarity.
Bèta -Gamma
δ The umbrae of opposite polarity in a
single penumbra
Delta
β-δ A sunspot group with a general beta
magnetic configuration but contains one (or more) delta sunspots
Bèta-Delta
β-γ-δ A sunspot group with a beta-gamma
magnetic configuration but contains one (or more) delta sunspots
Bèta-Gamma-Delta:
γ-δ A sunspot group with a gamma
magnetic configuration but contains one (or more) delta sunspots.
Gamma-Delta
The active regions with the more complex magnetic structures [7 and 8 above] re-
lease the larger flares and a high number of small ones.
Capturing solar flares
Solar flares by their very nature are quite fleeting events with small flares lasting just a few minutes to the huge events prevailing for just a few hours. To become
successful at capturing such events is down to using techniques designed to increase your probability for success! I personally have filmed about 100 solar flares over the
last two years so here I shall share my techniques for making such captures with you. The best way in my view to capture and present the activity in these fascinat-
ing events is through time-lapse photography/presentation. Here is a list and brief explanation of my techniques:
Always check the local weather, I use www.sat24.com this will let you view the cloud structures from satellite view so you can tell if the gaps will permit you the op-
portunity to go out and set up. This should be backed up with a good look at your
local sky outside and use a tree or part of a building as a reference point to check
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the wind direction via cloud movement.
Check the daily sun on www.spaceweather.com website, this shows a white light photo of the sun indicating the position and numbers assigned to the current active
regions and underneath is an indication for the days potential for solar flares. Check the http://halpha.nso.edu/ this is part of the Global Oscillation Network Group
[GONG] look at the movies immediately preceding your imaging session at the po-tential targets for solar flares. You can also use this image as a reference – rotate
your camera so that your image is at the correct solar orientation. The latest image should be within 2 minutes of real time [subject to clouds over the GONG observing
site]. Check the GOES X-ray flux graph on http://www.swpc.noaa.gov/ and assess the
trend over the last few days this may hint at the regularity at which the current active regions are flaring? This graph is updated every 5 minutes. I have used this
numerous times to predict C and M-class flares. Keep the links [in 3 and 4 above] open on your PC while you are out imaging and
you will not get caught out if a flare goes off on a different part of the Sun to that
where you are imaging! Just beware if your PC processor is too busy this may affect the performance capture/rate of your camera.
Some active regions are far more active than others but you can always image successive regions every minute or so by tracking between them. I image up to four
separate areas in one imaging session so that subsequent images of the same area are 4-minutes apart. This is how I capture so many close-up views of flares.
Make sure that the date and universal time [UT] is imprinted into the name of your video/image file. You now have a useful scientific record of the event and not just a
pretty picture! Why not consider joining the http://britastro.org/baa/ [British Astronomical Association] and submit your drawings/photos to the solar observing
program? Some amateur flare capture specialists use focal reducers to keep imaging the full
solar disc and this is also by far the best way to detect/record solar shock waves. If you are busy inside but have your kit and observing box set up outside keep
monitoring 3 and 4 above and go out and start imaging as soon as a hint of flaring
starts. You could always develop a remote solar monitoring system but this is beyond my
present level of experience. Consider setting up a sudden ionospheric disturbance [SID] detector that gives you
an audio alert when a solar flare triggers [I have no experience of such as yet but it is a future project on my to-do list].
Checking the magnitude of that flare that you captured Once you have captured a solar flare you should revisit the GOES graph mentioned
in 4 above and this will give you a rough estimate as to the flares magnitude. You may have to wait several hours but you should check this other NOAA link
http://www.swpc.noaa.gov/ftpmenu/indices/events.html as a final confirmation and look at the edited events page for the day and time in question. The duty space
weather forecaster should have checked all instrumentation and assigned a final flare magnitude [in the particulars column] giving it its designated letter and magnitude
number to within one decimal place.
I shall discuss white light imaging techniques in the forth coming December issue. Have fun with our Sun
Very best wishes Andy Devey
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The Night Sky…….. November 2012
Until November 23rd at around 04h, the Sun having passed through the constellation of Libra, enters Scorpius for about a week, because on the 29th at
about 15h00, it crosses into the neighbouring constellation of Ophiuchus the Serpent Bearer.
The Moon
The moon is at apogee, its furthest from the earth, at 15h31 on the 1st, and again on November 28th at 19h36. Perigee (nearest to the earth) occurs on the 14th at
10h23.
You may be able to glimpse earthshine on the night hemisphere of the waning cres-
cent moon from the 8th to the 12th.
Last Quarter at 00h36 on the 7th is in the constellation of Cancer.
The New Moon in November occurs on the 13th at 22h09, a
degree or so below the sun, in the constellation of Libra. First Quarter at 14h32, on the Capricornus-Aquarius border occurs
on the 20th. A total eclipse of the sun takes place starting at sunrise in the Northern Territories of Australia, proceeding across
Queensland and the city of Cairns into the Coral Sea. From there the eclipse continues eastwards crossing the Pacific Ocean to end
at sunset before hitting Chile in South America.
Full Moon is on the 28th at 14h47, in the constellation of Taurus,
near Jupiter. A penumbral eclipse of the moon takes place, producing a very slight dimming of the moon towards its north
pole.
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The Planets
On the 17th of November, Mercury passes through
inferior conjunction with the sun. This means that it lies at its nearest point to the earth between the sun and
us. The planet is 0.25° north of the sun at the time. Its rapid retrograde motion takes it into the morning sky so
that by the end of the month, the planet is rising two hours before the sun and is readily visible at the
beginning of morning twilight. On the 27th of November, Mercury will be seen 8° above the SE
horizon at 07h in the constellation of Libra, almost in line with Venus, with Saturn, a moon width almost
above Venus at an elevation of 15° to the upper right of Mercury. Spica, brightest of Virgo’s stars is further to
the right of Venus and Saturn – the angular distance
between each of these two latter bodies is about 12°. Venus continues to be a resplendent morning object,
rising almost four hours before the sun at the beginning, and 3 hours before the sun at the end of the month.
Worth looking for is the close conjunction between Venus and Saturn during the morning of the 27th, with
Mercury some 10° to the lower left in the SE sky around 07h. The angular distance between Saturn, the fainter
of the two objects and Venus is just one moon width (0.5°). Saturn will be seen above Venus and slightly to
the left. Earlier in the month on the morning of the 11th at around 05h, Venus and the waning crescent moon,
with earthshine lighting up its night hemisphere, will lie side by side as they rise in the SE, separated by 7° (the
width across the knuckles of a clenched fist held out at
arm’s length). During November Mars sets a couple of hours after the
sun and so may be seen in the early evening sky as twilight fades, low in the SW. Look in that direction with
binoculars, where you will see the planet approximately 5° above the horizon. The planet continues to fade as
earth’s distance from Mars increases and on the 13th, Mars leaves the constellation of Ophiuchus and enters
Sagittarius. The planet is beginning to ‘move’ northwards again, and this is the reason why it is easier
to spot during November than it was during the two preceding months. At 17h on the 16th, the thin waxing
crescent moon, a couple of days past new, is above and 5° to the upper left of Mars, and at that time, Mars is
midway between the moon and the horizon. An hour
earlier, shortly after 16h, the dark limb of the waxing crescent moon occults (passes in front of) the fairly
bright star Mu Sagittarii, and this event can be observed in a small telescope. The moon at that time is
12° above the SSE horizon.
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At the start of November Jupiter rises at 18h and rises as the sun sets by the end of
the month; the reason for this is that Jupiter is approaching opposition (opposite the sun in the sky) and its closest to earth at the beginning of December. After rising,
the planet is visible all night until dawn, and by midnight is very high in the heavens, some 60° in altitude. During the month the planet moves retrograde (from east to
west) in the constellation of Taurus, and on the 28th bright Jupiter is 5° above the ‘Red eye of the Bull’, the star Aldebaran, brightest star in that constellation. You will
see the beautiful cluster The Pleiades 12° to the right of Jupiter; the three objects forming a right-angled triangle, with Jupiter at the right angle. As always, when
Jupiter shines brightly all night, there is a good opportunity to see the Galilean satellites through well-focussed firmly fixed binoculars. During the night of the 28th
and 29th, the almost full moon forms a very close conjunction with Jupiter, when, at 01h, the two objects are separated by 1° (two moon widths). As the two separate
and the night progresses, the moon is involved in a penumbral eclipse as outlined above.
As November proceeds, Saturn becomes visible in the morning sky once again and
by the end of November rises over three hours before the sun. The ringed planet’s close conjunction with Venus on the 27th, in the constellation of Virgo, has already
been mentioned. On the 12th, at the onset of morning twilight, there is a pleasing quadrilateral in the
SE sky between Saturn; the waning crescent moon with earthshine; Spica, the brightest star in Virgo; and Venus, the brightest planet.
Uranus is visible for most of the night until the early morning in the constellation of Pisces during this month. It is currently below and exactly in line with the two stars
forming the left hand side of the square of Pegasus. These two stars are Alpheratz and Ageib, which are 13 or so degrees apart. If you scan with binoculars the same
distance that these two stars are apart but below Algenib, the lower of the two stars, you will come across Uranus, which has the appearance in binoculars as a faint
blue-green star. Neptune in Aquarius is very difficult to spot at the present time unless you have a
detailed star map of the constellation, with the position of Neptune marked. It is
very faint and is only visible before midnight throughout the month.
There are two interesting meteor showers this month, the first of these is the Taurid
meteor shower consisting of slow moving shooting stars associated with Encke’s comet and peaking during the 3rd and 4th. The gibbous waning moon will interfere,
as will pre Bonfire Night fireworks in the sky! The Taurid shower is noted for producing bright slow moving events. Several years ago, another meteor shower
radiating from the constellation of Leo produced several thousand meteors each hour. The Leonid shower has now subsided, and astronomers are not expecting to
see more than about 20 an hour in the early morning of the 17th. The parent body of this shower is comet Temple-Tuttle, which visits the earth every 33 years.
Constellations visible in the south around midnight, mid-month, are as follows: Eridanus, and the Pleiades in Taurus. Perseus is at the zenith embedded in a rich
star field – take a look through binoculars and see!
All times are GMT 1° is one finger width at arm’s length.
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One of the most astonishing events in the Universe is called pulsar. It
is basically a rotating neutron star with a similar mass to the Sun's but with a diameter of a few 10 km, that is with a huge density. Rotation
(or spinnig) produces jets of particles which become beams of light. Due to the rotation, these beams are emitted as the light in a
lighthouse. Also, the beams heat the surrounding matter to millions of degrees and this is why we see it in form of X-rays. Pulses vary from
several miliseconds to several seconds. Some X-ray pulsars are in binary systems. This kind of system is formed by a neutron star with a
companion normal one. The neutron star pulls the matter from the normal one (because a neutron star has a very intense gravitational
field). This process gives a very hot material and then produces X-rays aslo. Most of these kinds of systems are found in globular clusters
which normally are formed in supernova explosions.
A pulsar called PSR B1509-58 is at the center of this dramatic image.
Astronomers have estimated that it is about 1700 years old which means that it is a young pulsar. The neutron star at its core is spinning
almost 7 times per second. Each time it spins it releases energy into the surrouding space creating those dreaming structures in the image.
The blue veil (more energetic X-rays) is created when a powerful wind
of ions and electrons is injected and produces an magnetized nebula.
You also can appreciate red and green colors. This time they correspond also to X-rays, from less energetic (red) to medium
(green). There are still whiter areas in the upper right. The gas is transferring energy to another neighbor nebula (RCW 89) and this
process produces such a beauty form.
This pulsar is about 17,000 years-light far away in Cicinius
constellation. NASA has said that its shape is like a powerful cosmic hand.
Words: Pepe Gallardo (Spain) Twitter @aechmu
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Occultations By John Harper
Key to the Occultation Table The columns of the table give data specific to each of the Lunar Occultation
events listed.
From left to right they are:
1 Day of the Week 2 DATE in the format: dd-mm-yyyy
3 Universal Time of the event (add one hour when British Summer Time is in force for Local Time.
The predictions are for Scarborough, which lies midway between London and
Edinburgh, on the North Sea coast of the UK. (N54.27 deg., W00.43 deg.) 4 Occulted star’s visual magnitude
5 P = Phase tells you whether the event is a disappearance (D) or reappearance (R) or a Graze (C).
6 L = Limb. This indicates whether the event takes place at the dark (D) or bright (B) lunar limb.
7 Al. = the Altitude of the moon at the time of the occultation event. 8 Az. = The azimuth (angular distance along the horizon, measured from
the North Point, clockwise. 9 Sun Alt = the angular distance of the sun, below the horizon at the time of
the event. 10, 11 & 12 the name or catalogue number of the star being occulted.
XZ Cat No. This is the star’s designation in the US Naval Observatory catalogue of over 32,000 stars that can be occulted by the moon.
Proper Name. This is the star’ more common name, if it has one!
ZC No. The Zodiacal Catalogue of 3539 stars brighter than visual magnitude +7, within 8 degrees of the ecliptic. Some fainter stars are included in this
total as well. 13 PA = Position Angle. This is the angular position on the limb of the moon
where the reappearance or disappearance will occur it helps you look at the right part of the moon’s limb. Position Angle is measured from Celestial
North (the line of Right Ascension running through the centre of the moon’s disc. It is measured clockwise through west, south , east and back to north, a
total of 360 degrees.
Dione Rhea Occultation:
Moons of Saturn
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Budget Astronomy, a
myth ?
Probably the most common misconception is that it takes a lot of money to get started in
astronomy.
It doesn’t, if you are willing to take the time
and learn some of the sky. Let me explain.
At the very basic level, to get started in astron-omy, all you need to do is look up (preferably at
night with clear skies)!
Congratulations, you are now an amateur astronomer !
(amateur = someone who does something for the love of it)
Using a star map (freely available on the internet,
and a version available on this site) you should be able to spot some of the major constellations with relative ease. From any starting
point, you can “star hop” to an adjacent constellation, and begin to increase your knowledge of the night sky.
Sure you won’t get to see the amazing images seen on the tv and in papers /magazines from hubble et.al. but you won’t get this through a telescope either. The
images from hubble etc. are taken over many hours (sometimes 100’s of hours) and processed using software to produce the great images we all love. In reality, what
you see through a telescope is (for the main part) in black and white. So, taking a tour of the night sky has whet your appetite for more. Time for a tele-
scope, right ?
Wrong! The best thing you can get next is a pair of
binoculars. Doesn’t need to be anything expensive. A pair of 10x50 (10x magnification with a 50mm
lens) is ideal. Get back out into the garden and
prop yourself up against a wall etc. (to reduce vibration) or, if your bino’s has the
ability, use a tripod.
This extra magnification coupled with the wide field of view is a great way to increase your knowledge of the night sky, and take in some
wonderful views at the same time. So, you’ve had your bino’s for a while and have been enjoying the sights. Time for a
telescope now surely ?
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Well, maybe !
If you can spare a £100 or so, you can get yourself started with a telescope. But, you don’t have to yet.
Get in touch with your local astronomy club and see when there next observing evening is. Most clubs will run open evenings to let the public view through either
the clubs telescopes or members equipment. Astronomy Wise has started this re-cently. You will find that most amateur astronomers are really keen to share their
knowledge and experience with anyone who takes an interest. If after this you are determined to get a telescope, stop!
Ask advice from your fellow enthusiasts. It will save you the
time, money and disappointment you get when looking through a “cheap” telescope for the first time.
So you have followed the guidance of your friends and got a decent, cheap(ish) telescope. Now what?
As daft as it may sound, put it up in the front room and play
with it! Find out what does what, how this attaches to that, etc. makes for setting up in the garden (or with fellow ama-
teurs) so much easier if you have done it when you can see. But if in doubt, ask for help.
Onto the vast world of accessories that you can get whilst stargazing. A red torch is really handy. Allows you to see whilst not ruining your night vision. I
got a head torch from a pound shop and put a couple of red sweet wrappers over mine. Not fancy, not pretty, but it works and it’s dark so who is going to see it !
To save kicking the legs of your tripod, bicycle rear lights are good, but a bit too bright. I got some from a pound shop (again!) and put some red electrical tape over
them. Works a treat. If you can find one, a pirate’s patch is a good idea. Put over your main observing
eye should you need to go inside to retain your night vision. It’s also worth keeping an eye in charity shops and book stalls for astronomy related
items. You can pick up some great bargains. One of my friends picked up a nice pair
of binoculars from one for just £9! Then there are the online auction sites and the local papers. Keep an eye in your local shop window as well. Many smaller shops let
people put cards up with things for sale. As I hope I have shown, you really don’t need to spend £’000 to get started in
astronomy (you may want a bigger, better setup later which can be expensive). The biggest resource you have is your fellow enthusiasts, use them! Ask questions,
even if they seem really silly (and I still ask the silly ones myself). Ask for advice, but do your own research as well. None of us can know everything so you may
stumble upon something that none of us have heard of, in which case, share it! J Just one final piece of advice. Whether observing with the naked eye, binoculars or a
telescope (regardless of size)NEVER look at the sun directly (please talk to an astronomer if you want to observe the sun as there are safe ways). This will cause
instant blindness and cannot be undone. Please don’t use welding goggles or similar as these are still not safe enough.
Take care, stay safe and hope you have clear skies J
Chris
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Astronomy Wise In The Community
October 12th 2012, Sawdon Village Hall, North
Yorkshire. Astronomy Wise held it’s first public viewing night last month. Jason Ives had been
planning this night for a few weeks, he arranged the location and the use of the local village hall. Adverts went out to the local radio station and we posted the event on
Facebook.
The hall provided us with the opportunity to provide hot drinks and run a
presentation; which is ideal if the weather was not too good. However we were lucky to have clear skies. Jacqueline Ives, Jason better half, provided some excellent cakes
or as they call them in the north east buns.
People came with the their children from the local area however two people took the journey down from Newcastle. Carl and Edward Dutton, Father and Son, made the
trip down not really knowing what to expect.
John Harper who writes for these pages and founder of a local society came along to
give a talk about the night sky. His laptop and projector were ready to go. John is a guru of astronomy in these parts and we were extremely honoured for him to come
along and offer the public the benefit of his knowledge.
Outside the telescopes were setup with a range of different scopes for the public to view through. The night was crisp and clear with a little atmospherics, however this
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did not effect looking at deep sky objects such as the
ring nebula. The atmospherics only really showed as we viewed a public favourite, Jupiter.
The night ran from 20:00 hrs to 22:00 hrs and the people that came along enjoyed the night. A big
thank you to Jacqueline for providing the Tea and cakes. Another big thank you to John Harper for
giving his time and talking to members of the public about the
wonders of the night sky.
Thank you to
all that setup
their tele-scopes for the
public to look through and a
massive thank you to all that
turned up and braved
the cold.
Edward Dutton Writes:
With it being such a long
journey down from Newcastle I was really quite
unsure what the night was going to be like. Never
having looked through a telescope before in my life
me and my Dad were amazed by what we saw. We
were shown through the night sky throughout the
evening and learnt so much. I am really excited to meet
up again with everyone and
everything Astronomy Wise in the following months.
Events like this are literally 'Astronomy for All'
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Paul Rumsby reviews The Amateur
Astronomers Guide to the Deep-Sky Catalogs Written by Jerry D Cavin
for Astronomy Wise.
The Amateur Astronomers Guide to the Deep-Sky Catalogs is published
as part of Springer’s ‘Patrick Moore’s Practical Astronomy
Series’. The book provides complete listings of the important
deep sky catalogs considered useful for amateur astronomy. The listings
make up around 80% of the content, the remainder introduces
the reader to the people behind the
catalogs; those Astronomers and observers throughout history that
have spent large parts of their lives documenting and refining their observations.
Catalogs included start with Ptolemy’s Almagest or the ‘Great Book’, Ptolemy performed his observations of the heavens during the second century Anno
Domini, and ends with the Caldwell Catalog created by Sir Patrick Caldwell-Moore in the nineteenth century. The book therefore provides nearly two thousand years
of documented observations.
The catalog listings will make an excellent resource for amateur astronomers giving co-ordinate locations and other information on thousands of galaxies, stars
and nebula. The all to brief bio’s provide a delicious taster into the lives of some fascinating characters and will act as a prompt for more in depth research.
A thoroughly recommended book for all amateur astronomers.
Paul Rumsby
October 2012.
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Edward Dutton gives us our second book
review for this month. Astronomy Wise is never one to shy away from the big
questions and this review and book tackles the question of creation. We all have our
theories on the subject and no side can prove or disprove the other or can we?
"God and Stephen Hawking - who's design is
it anyway?" by John C. Lennox
Are you lost between the small sweet fringes of religion and science?
Are you curious on someone else's opinion of the constant war between religion and sci-
ence?
This short response to Stephen Hawking's (and co-author Leonard Mlodinow) book "The
Grand Design" really goes into depths and detail about it. The author, John C.
Lennox explores sections of the Bible that help describe the creation of the Uni-verse and aggressively compares them to Hawking's book.
I personally think Lennox slates Hawking's book too harshly and regularly brings the ideas that Hawking proposes down with extreme and unnecessary exaggera-
tion. Although there is no definite known answer to the creation of the Universe Lennox helps show the advantages and disadvantages of each side and how they
expel the other beliefs or theories. With Lennox being a mathematician and nei-ther 'Scientist or Pope' he shows how ideology and theories can be made in com-
parison to a religious story or reading from the Bible. Throughout the book he us-es rhetorical questions to drag you in, keep you involved with the struggle about
your final choice. But, this subject cannot be rushed and time needs to be taken to consider all op-
tions. For some it takes days, for others it may be years but you need to find what makes sense for you. However, it's unlikely you will stick to it.
In my opinion there is no definite barrier between Faith and Science, it all gets a
bit mushy - but the human brain hasn't discovered how to accept defeat when we do not understand. There will always be conflict.
Astronomy Wise Rating: 3.5
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Image by Team Android
SkySafari For Android
This month I am going to look at our first Paid For application for Android, Southern Stars Sky Safari.
As with all applications we have featured so far I have tested on my Samsung Galaxy 10.1 tablet.
Firstly the App comes in three versions. SkySafari,
SkySafari Plus and SkySafari Plus. So depending on your budget and needs
depends on what version you require. For this test I purchased SkySafari. This version has no telescope
control However for me this was not a requirement I needed.
So what do you get with the basic version?
The basic version of SkySafari shows you 46,000 stars, plus 220 of the best-known star clusters, nebulae, and
galaxies in the sky. It displays the Solar System's ma-jor planets and moons using NASA spacecraft imagery,
and includes the best-known 150 (or so) asteroids, comets, and satellites. It lets you find objects in the sky using your Android's built-
in compass and accelerometer, and identify stars and
planets by holding your phone up to them. (Southern Stars)
If you have used and like Stellarium on your PC then I
think you will like this application. Once downloaded and setup for my location I found the software easy to
use.
I like to star hope when I am out and sometimes I like to go out without my scope and just look up. With this
software installed on my tablet I could quickly find constellations, planets and stars. A quick note to
mention the other versions do have telescope control.
If you are out with you telescope the App can easily be switched to night mode.
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This is useful when out, having it in night mode
means your eyes are not constantly trying to adjust from the glare of the screen to darkness.
Modes Once you have set up your location you can use
the App to see what’s in the night sky at that
particular time, or the can put it in compass mode and point your device towards the sky
looking North, East, South or West.
You can also search for objects from the search function. Type in your object and press search,
firstly a scree will be displayed with the object info. Press centre and the object will be found.
You can customise your screen and display object names if you wish.
Overall I was very impressed with the software
and found it easy to use. Mostly suited for tablets where you will get a good graphical
display. It should be mentioned that SkySafari is
available on iOS (I Pad) systems.
Astronomy Wise Rating 5/5
http://www.southernstars.com
Images Southern Skies
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We, everyday people, will be able to go
to outer space soon. Not just the super-wealthy or specially-picked private
people who go through years of training. The space tourism industry will be start-
ing soon, jump-started by the combined dreams and efforts of engineers, financial
backers, motivating prize money, and a supporting cast of artists, writers,
lawyers, teachers, and scientists who are combining their shared dream of seeing
an ongoing and permanent human presence not just in space, but on
another planetary body. The Moon has not had a significant human presence
since the 1970s - none in terms of actual
humans, and only sporadic unmanned instruments, which essentially once
placed there, have had no way of being monitored in person. Google recognized
the surge in innovative technologies and interest in space from the competitions of
the Ansari X Prize in 2004 and of the Northrop Grumman Lunar Lander
Challenge X Prize in 2009. The Ansari X Prize was meant to inspire the
development of technology for regular,
sub-orbital flight, and the Northrop
Grumman Lunar Lander Challenge X Prize was meant to stimulate tech develop-
ment for soft lunar landings. Google started the Google Lunar X Prize as the
next step in taking humans back to the moon, for widespread lunar exploration.
So GLXP is a competition whose mission is to jump-start a new age of exploration
on the Moon, an age Google refers to as Moon 2.0. They see the Moon 2.0 age as
growing a financially stable and consistent human presence on the Moon
by inspiring new technologies to follow on the commercial space flights already
happening. Many people involved are
also looking forward to a fast-paced development of space tourism!
This mission of the Google Lunar X Prize
has inspired many people around the planet to be personally involved, people
who have dreamt of having a space career but most of whom have not
pursued those dreams till now, simply because of a lack of government-led
missions and jobs to put humans beyond
Earth's own immediate orbit. And for most of the citizens of Earth's countries, their
governments have never started a space program. This competition has brought together 25 teams, each with a unique personality, each with their own goals that
go beyond the competition. And not only engineers are involved: teachers, artists, lawyers - the spectrum of talents in human ability is represented by people who all
share a passion for space exploration and see this as not only a way to help make it happen, but to be part of it themselves.
The main Google Lunar X Prize of $20 million will go to the first team who lands on the Moon by the end of 2015, sends a robotic rover at least 500 meters across the
surface, and sends video and still images back to Earth. The team who comes in
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second will receive $5 million, and there are 5 $1 million bonus prizes for the teams
that:
Beyond being inspired to compete for the
Google Lunar X Prize, all of the teams plan to be part of space exploration, and see the prize
money as only one possible source of funding. 90% of the money raised for each of their
projects has to come from private sponsors and donors and not from governments,
although the teams are allowed to have government contracts as costumers. Selling
payload space for scientific and prospecting instruments is not just a way to pay for the
project now, but as a way to make profit in future missions. Customer payload space
on a spacecraft can go for $2 million/kg. This is being done by a few of the more financially competitive teams, who plan on being a part of lunar mining, especially in
water ice.
Water ice is seen as a major motivating reason for the more commercially-minded to have a successful Moon venture business, since water ice could potentially be used
to break apart into hydrogen and oxygen for fuel. Planetary geochemist Larry Taylor says that there may be around 600 million tons of water ice near the poles
(according to NASA there may even be over a trillion) and that using this as a fuel source could one day make the Moon “a gas station in the sky” for spacecraft.
Competing along with the future ice minors are many other teams who are more
interested in encouraging space tourism, education, basic science, and simply being a part of this step in putting humans beyond low Earth orbit. These teams have
unique personalities that show through their designs and in the way they raise
money. Their excitement and heart for space exploration just shines!
Synergy Moon is an enthusiastic partnering of people from at least 15 different
countries, creatively combining the work of space tech engineers and artistic types. This synergy is embodied in their little rover surveyor, Tesla, part of whose mission
will make many artists light up in joy. Tesla will carry the Art Capsule, which will carry art projects from all over the world, and show the art to planet Earth in ways
yet to be announced. They put out a call for video and 2D art, inviting artists from around the planet to be part of this space project. The larger Tesla prospector rover
will have the geology job of identifying minerals on the Moon, and it also will be carrying “microbots”, which will be released to do art and science projects.
*find an ice deposit
*land near an historic artifact
*survive the lunar night, which lasts for 2 weeks
*travel more than 5 km over the surface
*promote ethnic and other diversi-ty in the field of space exploration.
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Top left: Synergy Moon's little robotic surveyor,
Tesla, bearer of art and science. And maybe the most adorable lunar rover. Credit: Synergy Moon
Team Puli, based in Hungary, is an example of
how much national pride this contest is inspiring. Team Puli wants to help push forward Hungarian
science contributions on Earth and in the solar system. They compare their attitude to the
character of the smallest prince, known from Hungarian folk tales: “With hard work,
endurance, humility, perhaps a pinch of luck, we aim to go high, and we hope that many
Hungarian people will look at the Moon differently in the future.” They also push science education
for everyone.
The planned
outer design of the rover.
Credit: Team Puli
It looks amazingly like Team Puli's namesake dog
breed, the Puli:A Puli dog in a hurdle competition. Credit: free-extras.com
Team Puli's test rover,
walking over small hills of gravel and sand at a bauxite
mine. The test rover is off soon to the MARS2013
event in Morocco, where it will spend a month in a
simulated Mars environment being run remotely over
hills. Credit: Team Puli
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Euroluna's rover, Romit, the “Spacedog”.
Euroluna is based in Denmark, with team members also in Switzerland and Italy.
They have contributing members that span the ages between 16 and 60 - one
teen member runs the MoonRaker program, which is responsible for
calculating trajectories that can be used to get to the Moon. Credit: Euroluna
The Chilean team Angelicum's rover,
Dandelion. They went through many ideas based on different animal de-
signs, picked an insect, and improved on it in terms of what will be needed
in the lunar environment. Dandelion's shape and lack of jointed legs were
designed to deal with conditions like the lunar dust. Angelicum has part-
nered with Earthrise Space, Inc.'s team Omega Envoy, which is building
the lander, Sagan. ESI wants to develop transportation to support
future lunar industry infrastructure. Credit: Angelicum
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These are the planned landing sites so far of 15 of the teams. You can see that Synergy Moon plans on working for the bonus prize of landing near an historic
artifact, by landing near the Apollo 11 landing site. Credit: GLXP.
If Synergy Moon does land near the Apollo 11 site, one of the rovers will be able to take a picture to send home - required proof for the prize, but a fun postcard, really!
In order to do this, they will be following guidelines written by NASA. While not legally enforcible, the guidelines are consistent with the 1967 U.N. Outer Space
Treaty, and are meant in part to protect historic sites on the Moon of shared human
history.
NASA says of the Apollo 11 area:
“Project Apollo in general, and the flight of Apollo 11 in particular, should be viewed as a watershed moment in human history and humanity. It was the first instance in
human history in which emissaries from this planet visited another body in the solar system. It represented the culmination of years of effort, the significant expenditure
of life and resources, and the opening of a new age in human history. The site of that first landing requires preservation; only one misstep could forever damage this
priceless human treasure.”
To help preserve this site, NASA recommends that the Apollo 11 and 17 sites be exclusion zones with Artifact Boundaries. They suggest that a team's spacecraft land
below the horizon to minimize how much dust disturbs the sites, and then have the
rover drive slowly up to no further than the Artifact Boundary. NASA sees a benefit in having the rover take pictures and see how the artifacts have weathered the
bombardment of high energy particles from the Sun.
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The guidelines also say that it will be helpful for rovers to inspect the artifacts and
working instruments like the multiple Lunar Laser Ranging Retroreflector arrays, in terms of possible damage from the lunar dust, which the Google Lunar X Prize refers
to as “tiny, sharp particles of pain in the butt”. NASA says that the dust is of sand-blasting quality. The problem, even without the dust being kicked up by activity, is
that the dust has been ionized by the solar high energy particles and so is electrostatic, so it just sticks to anything available. The rovers can help to inspect
the instruments, and problems may be able to be handled in the planned continual visitation to the Moon.
NASA also suggests that the rovers could get involved in some actual geological and
gravity experiments:
“Push biggest possible rock over edge of crater or rille: Tracks of boulders rolling down slopes have been used to infer geotechnical properties of the surface
layer....Soils that develop in slopes may well be metastable, such that avalanches
could be easily triggered. Also, it would be fun to push a big rock over a cliff. It is a question whether a rover could push a rock and also observe the descent, but it is
worth thinking about.”
Let's hope a rover gets to have the fun of pushing a big rock over a cliff, and watch-ing it fall!
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Astronomy for all
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