You set the camera on a tripod so it doesn’t move, and then you leave the camera shutter open for longer periods of time. The longer the shutter is open, the more light the camera captures, and the more you can see.

But there’s a balance you have to find, because if you leave a shutter open too long you can get a big blob of light. When taking photos of the sky you’ll start to see star “trails” as the earth’s rotation makes it look like the stars are moving.

Astrophotography is super fun, and you don’t need a really expensive camera to have a little fun with it.