2006-07-08 02:22:17 · 6 answers · asked by joey.alex 1 in Science & Mathematics ➔ Astronomy & Space
The Andromeda galaxy you can just about see with the naked eye (easier with binoculars) is 2 million lightyears away.
So about 2 million years.
2006-07-08 02:32:05 · answer #1 · answered by The Yeti 3 · 2⤊ 3⤋
Some of the furthest bright stars are in the order of 2000 -3500 ly away, so they'd be some of the last to wink out, i.e Eta Canis Majoris is 3200 ly and mag 2.45.
It'd be four years an four months before the first noticeble one was out, if you exclude the Sun, which would go out in 8 minutes time.
2006-07-08 09:29:29 · answer #2 · answered by Xraydelta1 3 · 0⤊ 0⤋
Since most of the stars we see (from telescopes) are several millions and billions of light years away and it takes that long for the light from them to reach us....I would say it would gradually take several billions of years at least for the night sky to be completely black on earth. Don't forget, the universe is also expanding.
However, since our own sun has only about 4 billion years left before it's dead, I don't think anyone would be around to see it anyway :-)
2006-07-08 09:30:13 · answer #3 · answered by charyl92678 2 · 0⤊ 0⤋
Being that the sun is the closest, 8 minutes!
2006-07-09 01:53:56 · answer #4 · answered by eventhorizon 2 · 0⤊ 0⤋
it would depend on how far away they are. the first one we would notice would take a few weeks before we detected anything, and all the rest would be weeks, months, years, or even millenniums behind that.
2006-07-08 09:26:27 · answer #5 · answered by The Frontrunner 5 · 0⤊ 0⤋
Tens of billions of years.
2006-07-08 10:55:45 · answer #6 · answered by Eric X 5 · 0⤊ 0⤋