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PH1600: Introductory AstronomyLecture 15: Star Clusters Study: Chapter 11 in The Cosmos book Next Lecture: Star Death & Black Holes
School: Michigan Technological UniversityProfessor: Robert Nemiroff
Book: The Cosmos by Pasachoff & FilippenkoOnline Course WebCT pages:
http://courses.mtu.edu/
This class can be taken online ONLY, class attendance is not required!
You are responsible for…
Reading the book One chapter per “quiz period” Anything from that chapter can appear on
quizzes or tests, even if I never mention them during my lecture(s)
This quiz period covers Chapter 11 APODs posted during the semester
APOD review every week during lecture Completing the Quizzes
Chapter 1, 2, 4, 6, 7, 8, &10 quizzes already due
Chapter 11 quiz due next See WebCT at http://courses.mtu.edu/ for
details
The Cepheids of M100Credit: NASA, HST, W. Freedman (CIW), R. Kennicutt (U. Arizona), J. Mould (ANU)
APOD: 1996 January 10
Open Clusters
Young < 1 billion years Light dominated by biggest blue stars
10 – 1,000 stars Found in Galactic Plane All stars born at the same time
All stars at the same distance
Perseid Fireball Over JapanCredit & Copyright: Katsuhiro Mouri & Shuji Kobayashi (Nagoya City Science Museum / Planetarium)APOD: 2004 August 13
Open Cluster NGC 290: A Stellar Jewel BoxCredit: ESA & NASA; Acknowledgement: E. Olszewski (U. Arizona) HSTAPOD: 2006 May 1
The M7 Open Star Cluster in ScorpiusCredit & Copyright: Allan Cook & Adam Block, NOAO, AURA, NSF APOD: 2005 April 6
In the Center of the TrapeziumCredit: J. Bally, D. Devine, & R. Sutherland, D. Johnson (CITA), HST, NASA APOD: 2005 July 10
Open Star Clusters M35 and NGC 2158Credit & Copyright: Canada-France-Hawaii Telescope, J.-C. Cuillandre (CFHT), Coelum APOD: 2003 December 15
The Rosette Nebula in Hydrogen, Oxygen, and SulfurCredit: T. A. Rector, B. Wolpa, M. Hanna (AURA/NOAO/NSF)APOD: 2000 January 11
Inside the Eagle NebulaCredit & Copyright: T. A. Rector & B. A. Wolpa, NOAO, AURA
APOD: 2006 February 26
Globular Clusters
Oldest things known in the universe 10,000 – 1 million stars All born at the same time
All have the same distance All are relatively dim
Not confined to our Galactic Plane Blue stragglers once a mystery
The Colorful Clouds of Rho OphiuchiCredit & Copyright: Jim Misti and Steve Mazlin, (acquisition), Robert Gendler (processing)APOD: 2006 July 14
Globular Cluster M3 from WIYNCredit & Copyright: S. Kafka & K. Honeycutt (Indiana University), WIYN, NOAO, NSF APOD: 2006 March 12
M3: Inconstant Star ClusterCredit & Copyright: J. Hartman & K. Stanek (Harvard CfA)APOD: 2004 October 12
Blue Stragglers in NGC 6397Credit: Hubble Heritage Team (STScI / AURA), A. Cool (SFSU) et al., NASA APOD: 2003 August 8
NGC 1818: A Young Globular ClusterCredit: Diedre Hunter (Lowell Obs.) et al., HST, NASA APOD: 2002 December 29
M55: Color Magnitude DiagramB.J. Mochejska, J. Kaluzny (CAMK), 1m Swope Telescope APOD: 2001 February 23