S/2002 N 1
- S/2002 N 1
-
Halimède (lune)
|
|
| Découverte |
| Découverte par |
Matthew J. Holman,
John J. Kavelaars,
Tommy Grav,
Wesley C. Fraser et
Dan Milisavljevic
|
| Découverte en |
14 août 2002 |
| Caractéristiques de l'orbite |
| Demi-grand axe |
16 560 335 km |
| Excentricité |
0,5711 |
| Période de révolution |
1879,71 d |
| Inclinaison |
134,101° |
| Satellite naturel de |
Neptune |
| Caractéristiques physiques |
| Diamètre à l'équateur |
48 km |
| Masse |
9,0×1016 kg |
| Masse volumique moyenne |
1,5×10³ kg/m³ |
| Gravité de surface |
0,010 m/s² |
| Période de rotation |
? |
| Albédo |
0,16 |
Température moyenne
à la surface |
? K |
| Caractéristiques de l'atmosphère |
| Pression atmosphérique |
pas d'atmosphère |
Halimède (désignation temporaire S/2002 N 1) est une lune de Neptune, découverte en 2002 par l'équipe de Matthew J. Holman en couplant des images du téléscope de 4 m Cerro Tololo Inter-American Observatory au Chili et du téléscope de 3,6 m de l'Observatoire Canada-France-Hawaii à Hawaii.
Elle porte le nom de l'une des Néréides, Halimède.
Portail de l’astronomie
Catégorie : Lune de Neptune
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Contenu soumis à la licence CC-BY-SA. Source : Article S/2002 N 1 de Wikipédia en français (auteurs)
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