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Star Colors and Temperatures

Radio Programs

Beta Pegasi Cooling off a giant star September 20, 2017

Orange Triplets Three orange stars for the price of one June 24, 2017

The Most Beautiful The “most beautiful” stars April 30, 2017

Seeing Orange Puffing up like orange balloons April 1, 2017

Moon and Regulus Reading a star from its color March 10, 2017

Counting Starspots Counting spots on a small star March 3, 2017

Moon, Antares, Saturn Subtle color for a giant planet January 22, 2017

More Fornax Drinking from the fountain of youth January 20, 2017

Moon and Aldebaran Coloring the eye of the bull January 8, 2017

Betelgeuse Explodes Death gets closer for a giant star December 30, 2016

Almach A colorful double star October 21, 2016

Sadr A supergiant with a rare tint August 9, 2016

Double Orange Stars that are big, bright, and orange July 26, 2016

Moon and Aldebaran Big, fluffy, bright, and orange July 1, 2016

Delta Lyrae Contrasting colors in the harp June 25, 2016

Moon and Regulus Spinning off a colorful cloud June 9, 2016

Bigger and Hotter Jacking up a star’s brightness — after this. January 11, 2016

Moon and Aldebaran Looking at the future of the Sun December 23, 2015

Morning Lineup Bright lights in the dawn sky September 23, 2015

Interstellar Medium Filling the space between stars April 8, 2015

M3 Reinvigorating some old stars March 16, 2015

Moon and Aldebaran The cool glow of a bright star February 24, 2015

Seeing Red Seeing red from a dying star February 6, 2015

Sadr A case of stellar WYSIWYG October 13, 2014

Mars and Antares Coloring in two bright pinpoints September 24, 2014

Alpha Lacertae A star with a bright profile August 27, 2014

Chameleon Star A star that’s changing colors July 5, 2014

Monoceros A vision in blue in the unicorn February 24, 2014

Annie Jump Cannon II Classifying the stars December 10, 2013

More Aquarius A pair of yellow supergiants December 7, 2013

Moon and Company An effective type of sun block October 26, 2013

Gamma Cassiopeia Pointing out a celestial letter August 17, 2013

Albireo A colorful stellar duo July 5, 2013

Colorful Arcturus Adding some color to a bright star June 22, 2013

Gamma-2 Velorum A star exposes its inner workings April 4, 2013

Moon and Antares A hot-but-cool stellar supergiant February 3, 2013

Crimson Star An aging but colorful star February 2, 2013

Pollux Younger but “older” than the Sun January 15, 2013

Venus and Spica A star that’s more than meets the eye November 16, 2012

Moon and Companions Colorful companions for the Moon October 17, 2012

Moon and Antares Flirting with the stars September 19, 2012

In the Balance The Moon slips past the scorpion’s claws June 28, 2012

More Saturn at Opposition Dabs of color in the night sky April 14, 2012

Leo Rising Adding some color to the stars February 26, 2012

Featured Images

Betelgeuse, Aldebaran, and the Sun

Seeing Orange April 1, 2017

M3, a globular star cluster

Reborn Stars March 17, 2015

Rigel, the brightest star of Orion

Stellar Stunner December 22, 2014

Annie Jump Cannon

Astronomical Pioneer December 10, 2013

H-R Diagram

Stellar Plot July 7, 2012

Youthful Oldies March 4, 2010

First Snapshot January 7, 2010