How many stars are in the sky?

lothruin

What do you consider sky? The American Heritage Dictionary says sky is "the expanse of air over any given point on Earth; the upper atmosphere as seen from the earth's surface." Using this definition, there are no stars in the sky. Of course, it also says sky could be defined as "The celestial regions; the heavens." In this case, I suppose Bryce would be correct. Countless, or we have no idea, only educated guesses based on extrapolated data would both be appropriate answers. Jul 22 03, 11:32 PM

manvinder01

There are about 10^22 or(1 followed by twenty two 0's) sky's in the universe. There are 10^11 in our galaxy. How many you can see depends on which floor of the building your on!! Jul 23 03, 1:55 AM

Baloo55th

Quite a few of the ones you can see might not be there anyway. What you are seeing is where they were when the light you are seeing left them. Something at a distance of, say, a thousand light years has had a thousand years in which to blow up, collide or whatever since the light you see left it. And there may be new ones whose light hasn't had time to get here yet. Worrying, really. Soooooooo big. Jul 23 03, 3:18 PM