Halimede (moon)
Halimede imaged by the Very Large Telescope during follow-up observations on 3 September 2002 | |
| Discovery | |
|---|---|
| Discovered by | |
| Discovery date | August 14, 2002 |
| Designations | |
Designation | Neptune IX |
| Pronunciation | /hæləˈmiːdiː/ |
Named after | Ἁλιμήδη Halimēdē |
| S/2002 N 1 | |
| Adjectives | Halimedean /ˌhæləməˈdiːən/ |
| Orbital characteristics | |
| Epoch June 10, 2003 | |
| 16,611,000 km | |
| Eccentricity | 0.2646 |
| 1879.08 d (5.14 a) | |
| Inclination | 134.1° |
| Physical characteristics | |
| 62 km (for albedo 0.04) | |
| Albedo | 0.04 (assumed) |
Spectral type | neutral (grey) B-V=0.73 R-V=0.35 |
Halimede /hæləˈmiːdiː/, or Neptune IX, is a retrograde irregular satellite of Neptune. It was discovered by Matthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser and Dan Milisavljevic on August 14, 2002.