Planets

This program displays information about the planets. It can display a top view of the inner or outer planets (with I or O). It is possible to choose a planet by it's number and see a panorama together with information about this planet. When clicking on a star or planet in the panorama the name of the selected object is written. When selecting planet 3 (earth) all other planets are shown in the panorama. The viewing time can be changed with the cursor keys. Horizontal cursor keys can be used to select a time step (year, month, day, hour, minute, second). Vertical cursor keys can be used to step forward or backward using the selected time step. This can be used to display a motion picture of the planets and stars. It is possible to change the location (longitude and latitude) of the viewer (the default location is Vienna).