posted on Sep, 20 2007 @ 09:32 PM
Distant stars are a couple of million/billion times dimmer than our star, the Sun, and cameras are very finicky pieces of equipment. The sensors on
modern digital cameras can only handle about 12 to 14 stops of light, and that number is even less for film. Those dim stars you see, compared to the
astronaut or space shuttle, are perhaps a million stops away from the exposure that would be needed to get a good pic of the astronaut. They are FAR
to dim to show up in the photo.
It's pretty much just trick photography, those pictures you see of the sky filled with stars. Like a real-estate agent leaving the shutter open a bit
longer to make the picture of a dingy, dark room seem brighter. If you want to get a good picture of the night sky, you some very expensive equipment
that actually moves the camera in relation to the stars, because the exposure needed is so long that the stars move. It's the same reason you can't
see stars at daytime; it's too bright for your eyes to see them. Same with cameras.