Scientists Discover Oldest, Distant Star

May 29, 2011 By Deepa Gopal
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AnikaP's picture
AnikaP July 20, 2011 - 7:34am
That's really cool!
Arjun's picture
Arjun May 31, 2011 - 6:48am

Hmm... I though that measuring the distance of a star had to do with the apparent brightness and the absolute brightness. Cool, though!

Rap's picture
Rap June 4, 2011 - 3:33pm

The apparent brightness is probably how bright it looks, and the absolute brightness is probably how bright it is.

Arjun's picture
Arjun June 6, 2011 - 10:04am
That's correct. The apparent brightness is how bright it appears from Earth, and the absolute brightness is how bright it actually is.