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Ask Dr. Universe: What color are our stars?

dr-universe-logoVANCOUVER, Wash. – Just the other night, I grabbed my binoculars and looked up to the starry sky. At first the stars looked white, but when I looked closer I noticed some appeared more blue and red.

I was curious to find out exactly what color they were, so I visited my friend George Newman. He’s a physics and astronomy instructor at Washington State University Vancouver.

Dr-U-in-spaceHe said that a star mostly emits the kinds of light that our eyes see as red or blue.

“The thing that determines which color they give off most is their temperature,” he said.

Read all of this answer from Dr. Universe at https://askdruniverse.wsu.edu/2016/11/28/stars-what-color-are-they/.

 

A service of Washington State University, Ask Dr. Universe answers some of the most interesting, tough and smart questions from curious kids all around the world.

 

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