2006-09-12 12:47:19 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Ditto on the six thousand, give or take a few. That is the total number of stars above 6th magnitude...those visible to someone with 20/20 vision in a dark location. As noted, you would only be able to see half of them at any given time.
2006-09-12 13:28:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The answer to this question is that it matters where you are located as one factor. But as a general rule, no matter how clear the night skies may be, the unaided human eye can only see stars down to about the 6th magnitude. The brightest stars are termed as 1st magnitude...and the greater the number, the dimmer the star...and 6th magnitude stars is the best that the unaided eye can see. It also requires that your eyes are "dark-adapted". After you go outside, all sources of light must be eliminated and guard yourself against looking at any light source. After being in the dark for about 20 minutes time, your eyes will have become "dark-adapted", and it is then that you can see the stars to the best of your ability...about mag 6. It is estimated that about 6,000 "known" stars (by a designation) can be seen with the unaided eye after dark-adaption...but by that I mean of both hemispheres.
2006-09-12 13:28:51 · answer #2 · answered by LARRY M 3 · 0⤊ 0⤋
The usual number mentioned is 6,000. But it depends on being at the equator, so that there are no stars permanently below the northern or southern horizons. It also depends on good eyesight and dark clear skies. Some people with exceptional eyesight can see more, I can see less because my vision is only about 20/30.
2006-09-12 14:37:24 · answer #3 · answered by campbelp2002 7 · 0⤊ 0⤋
Hi. About 3,000 at a time. (The earth moves and brings others into view.) If you count the naked eye galaxies (i.e. m31, m33) Magellanic clouds, and the naked eye globular clusters (i.e. m13) then the number is vastly greater, but you cannot see individual stars.
2006-09-12 12:56:05 · answer #4 · answered by Cirric 7 · 0⤊ 0⤋
Cant tell. It varies a lot depending on light pollution, latitude (more in the Equator), altitude (less air above your head), in dry places such as deserts you can see a lot more stars, etc...etc.
2006-09-12 12:56:36 · answer #5 · answered by NaughtyBoy 3 · 0⤊ 0⤋
Depends where you are in the world, and whether the night sky is clear. But how many?? Too many to count.
2006-09-12 12:53:17 · answer #6 · answered by Anonymous · 0⤊ 0⤋
I have heard between four and six thousand on a clear night, depending if you are away from light pollution.
2006-09-12 12:48:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
depends on where you are. in some places in the north of Chile (where the main observatories are) you are not able to count them.
2006-09-12 12:50:48 · answer #8 · answered by barrabas 3 · 0⤊ 0⤋
more than 7 and some have planets associated with them that are inhabited by our genetic relatives, so i'm told. ;-)
2006-09-12 12:55:45 · answer #9 · answered by drakke1 6 · 0⤊ 1⤋