Here's a loooong post, but it should contain a lot of useful information if you're looking for a bare-bones setup.
Setup of Astrotortilla can be down-right confusing. Hopefully this will help you to setup this incredibly useful tool with a funny name.
This was my first attempt at a Deep Space Object. You might be able to make out that it's M42, the Great Orion Nebula... the core of it at least.