PsamatheThe irregularly shaped small moon is extremely far away from Neptune. Although for the largest part made of water ice its surface is very dark. Its excentric orbit is strongly inclined against Neptune's equator.Distance to Neptune: 46 695 000 km Mass: 1.5 * 1016 kg Diameter: 28 km Orbit period: 9115.91 days (nearly 25 years) Back: List of the Moons, Neptune Moons 04/05/2006 |
Photo: Institute for Astronomy, Hawaii, Subaru 8.3 meter telescope, Mauna Kea |
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