THE PLANET FARTHEST FROM THE SUN
Semi-major axix |
4.495.1 millions km (30.1 Earth radius) |
Orbital period |
 164.8 Jahre |
Mass |
102.4·1024 kg (17 Earth masses) |
Diameter |
49.528/48.682 km (3.9 Diameter of the Earth) |
Mean densitiy |
1.6 g/cm3 (0.3 times the Density of the Earth) |
Siderial rotation period |
16 Hours 4 Minutes |
Satellites |
14 |
Ring diameter |
84.000 to 126.000 km |
Links:
Wikipedia: en.wikipedia.org/wiki/Neptune
DLR: www.dlr.de/RPIF/neptun0.shtml
Jet Propulsion Laboratory: photojournal.jpl.nasa.gov/targetFamily/Neptun
Tafel