There's a lot of debate back and forth between so called "experts" on whether or not certain cameras are better than others. I've actually heard that Canon is better Nikon in a variety of ways, but many people would fight that to the death. There are some specific tips you'll need to know to get started, but don't stop looking around for all the answers. Check out my http://astrophotography.findfastr.com/ blog for more help if you're interested!