stars – Page 6 – National Radio Astronomy Observatory

How Repeatable is the Position of a Star in the Sky From One Year to the Next?

Since the Earth completes one orbit around the Sun every year, it returns to the same position after 365.256…

There are actually several types of nebulae which are created by a variety of processes, including those associated with…

You are right in that the properties of the ejected material from the star and the fact that the…

We can tell the difference between different types of stars by looking at their spectra. In fact, spectral classification…

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…

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