HeyWhatsThat Planisphere for Google Earth: Advanced Options
Overlay the night sky in Google Earth with your horizon and peaks, an azimuth-altitude grid, and the positions of the Sun, Moon and planets (and Pluto too).
|First, select a HeyWhatsThat panorama:|
|or mark your location:|
|Second, choose the type of planisphere:|
Third, hit Submit:
Google Earth should open and display the state of the sky for the location and time you specified. You may find you have to manually switch to sky view (under the Google Earth View menu hit Switch to Sky).