TRANS-NEPTUNIAN OBJECTS

BEYOND THE GIANT PLANETS

tno

sedna

 

Semi-major axix

4500 millions - 150 billions km (30 - 1.000 Earth radius)

Orbital periods

hundreds to thousands of years

Mass

≤ 0.015·1024 kg (0.0025 Earth masses)

Diameter

about 100 km to 2300 km (Eris und Pluto)

Mean densitiy

2 - 3 g/cm³

Satellites

yes, e.g. Pluto 5

 

 

Links:

Wikipedia: en.wikipedia.org/wiki/Trans-Neptunian_object

Wikipedia: en.wikipedia.org/wiki/Kuiper_belt

DLR: www.dlr.de/RPIF/kuiper0.shtml

DLR: solarsystem.dlr.de/RPIF/zwergplaneten0.shtml
Sponsered by: Schyren-Gymnasium Pfaffenhofen

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