The Planetary System (HP49/HP49+)

A comfortable overview on the most important physical and geometrical data. The options of the 2-page menu display sun or earth distance, diameter, orbit velocity, axis inclination (the angle between planet axis and the perpendicular to the orbit plane), mass in units of the earth mass, and the length of a year in units of the earth year.

Axis inclination of Earth and Mars are about the same while the rotation axis of the Venus belongs nearly to the orbit plane. The following screen-shots show the data from sun and mars.

Here a look from the moon onto the earth. A click on the picture shows it in original size. (thanks to Otto Praxl for this picture):

View on the earth from the moon (styled)

Wolfgang Rautenberg