2007-02-16 09:58:50 · 3 answers · asked by STEVE W 1 in Science & Mathematics ➔ Biology
and if its so far, why cant I find my car keys :-P
2007-02-16 10:09:52 · update #1
Jerry P and Kemchan2 are absolutely correct. The real question (one of them) is how bright is the object?
The other real question is how much detail can the eye resolve? It turns out that the average person cannot 'see' anything that subtends less than about 1 minute (1/60 degree) of arc. (About 1 inch at 100 yards)
HTH ☺
Doug
Edit: But you *have* found your car keys. And they're always in the same place. The last place that you look ☺
2007-02-16 10:10:49 · answer #1 · answered by doug_donaghue 7 · 1⤊ 0⤋
well, on a clear night I can see the Andromeda galaxy which is 2 million light years away
2007-02-16 10:03:11 · answer #2 · answered by kemchan2 4 · 0⤊ 0⤋
Unaided by a telescope, Andromeda galaxy is about it: 2.5 million light-years.
2007-02-16 10:02:39 · answer #3 · answered by Jerry P 6 · 1⤊ 0⤋