For sun, moon and planets you can calculate things like ★ Position (azimuthal and elevation angle) ★ Distance to earth ★ Rise and set ★ Daylight ★ Moon phase ★ Eclipses Graphical displays of ★ Current lunar phase (plus globe of moon) ★ Objects now above the horizon ★ Solar system (Current position of planets and other objects) ★ Moons of Jupiter (Current positions as seen from earth) ★ Rings and moons of Saturn (Current positions as seen from earth) ★ Moons of Mars ★ Moons of Uranus ★ Moons of