NOTE SN FORM 3.doc

8/18/2019 NOTE SN FORM 3.doc

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a) "right red layer of gasbelow the corona, between 000km

to #000 km thick.

b) Only visible during eclipse of the sun

c) Temperature varies between $0 000 o Cand 500 000 o C

#. %&OTO'%&((a, The thinnest of all solar atmospheric layers, appro*imately #00 km thick.

b) Temperature is about +000 o C

c) This is the only part of the sun that is visible

to the human eye. t appears bright yellow during the day. This layer responsible for radiating heat

and light from the sun.

(-(-"( T&('(

The photosphere is the thinnest and the

coolest of all the solar atmospheric layer,

/hereas the corona is the thickest and thehottest.

The photosphere is the only part of the sunthat is normally visible to the human eye,

whereas the Corona and the Chromosphere

are only visible for a short duration during

a total solar eclipse.


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%&(O-(1 T&1T OCC2 1T T&(%&(O-(1 T&1T OCC2 1T T&(

'2'2!!' 1T-O'%&((' 1T-O'%&((

There are a few phenomena that occur

at the sun’s atmosphere among them

are:

PROMINENCES

SOLAR FLARES

SNSPOTS

• %rominence3

it is an e*plosion of hot gas that'hoots out from the 'un!sChromospheres, /ith shinybright light.

. t can shoot out as far as#00 to 400 thousand km andescape into outer space.


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"ut this hot gas is subseuently pulled backto the chromospheres by the gravitational

forceof the sun .

4. t also emits charged particles and ultravioletrays into outer space, it also causes a flow of windCalled solar wind.'olar wind consists of charged particles.


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'olar flares3 is a strong e*plosion

of gases that happen suddenly inthe sun!s chromospheres.

Occurs for only a few minutes Or a few hours but with

so much energy.

t occur near sunspots, its activitiesescalates when the activities of sunspots

reach a peak every $$ years.

'olar flares release charged particles like protons and electrons into outer space,

also the gamma rays and 63rays.


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'unspots 7 dark spots on the

'urface of the sun!s photosphere/ith a strong magnetic field.

2sually e*ist in groups and have

8arious si9es.

The dark spots is black in colorbecause this area has a lower

temperature :4000 oC) than its

surroundings :+000 oC).

4. This phenomenon occurs for a period of a few hours to several months.

5. The numbers of sunspots reaches a peak every $$ years

The effects of theThe effects of the

phenomena on thephenomena on the

surface of the sun onsurface of the sun onearthearth


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As the result of thesephenomena , the sun

radiates :

ELECTROMAGNETIC

RAY ! LI"E#LTRA$IOLET RAY, %!

RAY, GAMMA RAY

AN& COMIC RAY

T'AT ARE &ANGERO#TO LI$ING T'ING ON

EART'(

)( These ra*s , heat, andli+ht ener+* from the sun

also affect the eather

and communication on

earth(

Char+ed particles as a result of solar flares reach the North pole or the southpole of the earth and collide ith +as molecules in the atmosphere(

As a result, colourful li+hts that consist of +reen, *ello and red li+hts are

produced(

These li+ht that can -e seen at ni+ht are called aurora(


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It is -elie.ed that the

/uantit* of heat ener+*

recei.ed -* earth

increases hen phenomena

li0e prominences, solar

flares and sunspots occur(

The char+ed particles and

radiation from the sun also

influence the eather and

climate on earth(

The char+ed particle andradiation from the sun li0e

cosmic ra*s, !ra*s and

+amma ra*s ill collide

ith particles in theearth1s atmosphere(

This causes distur-ance to

the communications s*stem


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-roadcasts, tele+raph

transmission and telephone

calls(


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Documents

NOTE SN FORM 3.doc