I want to shoot the Milky Way, some constellations, and planets. I want to include some natural landscapes in these photos, similar to these:
http://www.flickr.com/photos/35492781@N08/4665431960/in/faves-blakeperdue/ http://www.flickr.com/photos/digitallion/3824172978/in/faves-blakeperdue/
I want to plan the composition of some shots in advance given my limited time on location. Given a specific date/time and your GPS coordinates or city location, what tools are available to tell you where the Milky Way, planets and constellations will be in the sky?