stars – Page 2 – National Radio Astronomy Observatory

What Color Would the Ocean Be on a Planet Orbiting a Red Dwarf Star?

The ocean on Earth gets its blue color due to the fact that it absorbs light from the red…

Since the light from a distant star is a point source for any measurement that we want to make,…

This is actually an application of spherical trigonometry. A good description of this calculation, including an online tool to…

I believe that in the article that you are referring to the authors are suggesting that the rotation axis…

In general, I believe that the term “star cluster” refers to gravitationally-bound associations of thousands of stars, while the…

I don’t believe that there is a standard reference for the average distance between stars in the Milky Way…

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