Stars – Page 7 – National Radio Astronomy Observatory

How Well is the Distance to Gl-581 Known?

Gl-581 is an M3 dwarf star whose distance is derived from its apparent parallactic motion of p = 159.52+-2.27…

A star that is 5.464×10^(13) km away from Earth is about 1.77 parsecs away, which is relatively close. A…

Yes. These are called binary stars. Depending upon the relative mass of the stars, one could have a situation…

The following is extracted from the introductory information on electron-capture supernovae (ECSNe) provided in Jones etal. (2016). ECSNe are…

The stars in a globular cluster are on average about 1 light year apart, and can be as close…

Since the unaided eye is really only sensitive to a small fraction of the stars in our Galaxy (about…

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