Astrophotography is one of the most complex types of photography, blending artistic talents with deep scientific understanding and technical ability. So, if you're just starting out, it can be a complicated topic to get a handle on. This video should help.
The most important thing to consider is, perhaps obviously, your telescope. In this 30-minute video, Forrest Tanaka takes a look at the common kinds of telescopes and explains which ones will be appropriate for your purposes. Then the only thing left to do is to buy one. And practise — a lot. [YouTube via PetaPixel via Reddit]