Tag: magnitude
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Stars
FAS Astronomers Blog, Volume 30, Number 5. Stars are huge balls of hydrogen plasma powered by nuclear fusion reactions at their core. Stellar Distances Except…
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Cosmic Distances, Stellar Brightness, and The Hubble Constant
FAS Astronomers Blog, Volume 30, Number 3. The Hubble Constant The Universe is expanding. The farther a galaxy is from us, the faster it is…