Methone (moon)
| S/2004 S 1 | |
|---|---|
 | |
| discovery | |
| discovery by | Sébastien Charnoz |
| date of the discovery | 2004 |
| data of the orbit | |
| course radius | 194,000 km |
| course eccentricity | |
| scan time | 1.0083 days |
| inclination | |
| natural satellite | of the Saturn |
| physical data | |
| diameter | 3 km |
| surface | |
| mass | 1,65×10 13 kg kg |
| of density | 1.17 g/cm 3 |
| gravitation at the surface | 0,000 48 m/s 3 |
| Sideri rotation | |
| albedo | 0.04 |
| surface temperature | |
| atmospheric pressure | 0 kPa |
Methone (provisional name after the discovery: S/2004 S 1) is one of the smaller moons of the planet Saturn.
Table of contents |
discovery
Methone was discovered in the year 2004 by the astronomer Sébastien Charnoz on photographic photographs of the space probe Cassini Huygens. Charnoz is coworker of the scientific team of Cassini Huygens and works on the university of Paris. There with the smaller, so far moons did not discover themselves it around extremely faint objects act, the probe Cassini of 75 pairs of long-exposed photographs around the Saturn had not made. Charnoz left the photographs by means of one of it developed software to examine. It found the moons Methone and Pallene. Charnoz reports: “I had looked already for weeks in my Paris offices for such objects, but only as I during one vacation my laptop used, became fündig I. That said to me that I should take more vacation. “
Possibly it already acts with the moon around the same object, to 23. August 1981 of the space probe Voyager 2 on only one admission was visible and the designation S/1981 S 14 received. Its distance to Saturn became estimated on approximately 200,000 km.
Saturn
in a middle distance from approximately 194,000 km circles course data Methone in 24 hours and 12 minutes.
structure and physical data
Methone have a diameter of approximately 3 km. If one puts a middle density of 1,17 g/cm to 3 at the basis (as with the neighbouring moon Mimas, then a mass of 1,65×10 13 kg results. At its surface the Schwerebeschleunigung amounts to 0.00048 m/s 2, this corresponds only about 0.05 parts per thousand of the terrestrial.
Web on the left of
Albiorix | Atlas | Calypso | Daphnis | Dione | Enceladus | Epimetheus | Erriapo | Helene | Hyperion | Ijiraq | Janus | Japetus | Kiviuq | Methone | Mimas | Mundilfari | Narvi | Paaliaq | Pan | Pallene | Pandora | Phoebe | Polydeuces | Prometheus | Rhea | Siarnaq | Skathi | Suttungr | Tarvos | Telesto | Tethys | Thrymr | Titanium | Ymir
(see also: List of the natural satellites)
