The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA14domino t1_jc2nz0f wrote
Reply to comment by pestapokalypse in The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird’s-eye view of a portion of the Andromeda galaxy. Credit: NASA, ESA by Davicho77
Can someone who’s good at math tell me how big andromeda would have to be in the sky before it is this bright? (ie i assume in a few billion years as it gets closer it would get brighter and bigger)
ElReptil t1_jc2qsbt wrote
> i assume in a few billion years as it gets closer it would get brighter and bigger
Bigger yes, but the surface brightness would actually stay the same (until you start to resolve individual stars). You would probably still be able to see more than you do now because the eye is better at seeing dim, large objects.
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