Star Colors and Temperatures

Radio Programs

Bigger and Hotter Jacking up a star’s brightness — after this. Monday, January 11, 2016
Moon and Aldebaran Looking at the future of the Sun Wednesday, December 23, 2015
Morning Lineup Bright lights in the dawn sky Thursday, September 24, 2015
Interstellar Medium Filling the space between stars Thursday, April 9, 2015
M3 Reinvigorating some old stars Tuesday, March 17, 2015
Moon and Aldebaran The cool glow of a bright star Wednesday, February 25, 2015
Seeing Red Seeing red from a dying star Saturday, February 7, 2015
Sadr A case of stellar WYSIWYG Tuesday, October 14, 2014
Mars and Antares Coloring in two bright pinpoints Thursday, September 25, 2014
Alpha Lacertae A star with a bright profile Thursday, August 28, 2014
Chameleon Star A star that’s changing colors Sunday, July 6, 2014
Monoceros A vision in blue in the unicorn Tuesday, February 25, 2014
Annie Jump Cannon II Classifying the stars Wednesday, December 11, 2013
More Aquarius A pair of yellow supergiants Sunday, December 8, 2013
Moon and Company An effective type of sun block Sunday, October 27, 2013
Gamma Cassiopeia Pointing out a celestial letter Sunday, August 18, 2013
Albireo A colorful stellar duo Saturday, July 6, 2013
Colorful Arcturus Adding some color to a bright star Sunday, June 23, 2013
Gamma-2 Velorum A star exposes its inner workings Friday, April 5, 2013
Moon and Antares A hot-but-cool stellar supergiant Monday, February 4, 2013
Crimson Star An aging but colorful star Sunday, February 3, 2013
Pollux Younger but “older” than the Sun Wednesday, January 16, 2013
Venus and Spica A star that’s more than meets the eye Saturday, November 17, 2012
Moon and Companions Colorful companions for the Moon Thursday, October 18, 2012
Moon and Antares Flirting with the stars Thursday, September 20, 2012
In the Balance The Moon slips past the scorpion’s claws Friday, June 29, 2012
More Saturn at Opposition Dabs of color in the night sky Sunday, April 15, 2012
Leo Rising Adding some color to the stars Monday, February 27, 2012
Star Organizer Getting the stars organized Monday, August 15, 2011
Moon and Antares A star that's redder than red Sunday, August 7, 2011
Mars and Aldebaran Coloring the night sky Tuesday, July 12, 2011
Delta Lyrae Lining up a colorful duo Sunday, July 10, 2011
Moon and Regulus Lining up a pair of stellar light bulbs Thursday, March 17, 2011
Messengers The messengers of the stars Wednesday, February 2, 2011

Featured Images

M3, a globular star cluster
Reborn Stars Tuesday, March 17, 2015
Rigel, the brightest star of Orion
Stellar Stunner Monday, December 22, 2014
Annie Jump Cannon
Astronomical Pioneer Tuesday, December 10, 2013
H-R Diagram
Stellar Plot Saturday, July 7, 2012
Youthful Oldies Thursday, March 4, 2010
First Snapshot Thursday, January 7, 2010


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