Long exposure, lots of noise?

Last night I just tried a long exposure of the sky, moon, and lake but it was super noisy. I am on my phone so I can't really upload they picture but from what I remember it was shot at f/8 ISO100, 116 seconds.

Should long exposures have significant amounts of noise? I shot with ny 30d, 18-55mm IS.

It's hard to tell with out seeing the shot, but no. Using those settings, you should not being seeing significant noise.

Thanks, I will post pictures tomorrow after I get back. For some reason it just seems Luke too much noise.

Are you sure you didn't underexpose the shot? That would give you a lot of noise.