physics 202: introduction to astronomy – lecture 15 carsten denker physics department center for...
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Physics 202: Introduction to Astronomy – Lecture 15
Carsten Denker
Physics DepartmentCenter for Solar–Terrestrial
Research
March 31, 2006 Center for Solar-Terrestrial Research
Spectroscopic parallax
Luminosity classes Stellar Masses Binary-star systems Visual binaries Eclipsing binaries Spectroscopic
binaries Star clusters
Open clusters Associations Globular clusters
H-R Diagram and Star Clusters
Stellar sizes Direct
measurements Luminosity-
temperature-radius relationship
Giants and dwarfs Hertzsprung-Russell
diagram Main-sequence Distance scale
March 31, 2006 Center for Solar-Terrestrial Research
Stellar Sizes
March 31, 2006 Center for Solar-Terrestrial Research
Cosmic Distance Scale
2
luminosityapparent brightness
distance
2 4luminosity radius temperature
March 31, 2006 Center for Solar-Terrestrial Research
Stellar Masses
March 31, 2006 Center for Solar-Terrestrial Research
Hertzsprung-Russell Diagram
Nearby stars
March 31, 2006 Center for Solar-Terrestrial Research
Brightest stars Hipparcos catalogue
March 31, 2006 Center for Solar-Terrestrial Research
March 31, 2006 Center for Solar-Terrestrial Research
Star Clusters