1647 Menelaus
| Discovery and designation | |
|---|---|
| Discovered by | Seth Barnes Nicholson |
| Discovery date | June 23, 1957 |
| Designations | |
Named after | Menelaus |
| 1957 MK | |
| Jupiter Trojan | |
| Orbital characteristics | |
| Epoch February 4, 2008 (JD 2454500.5) | |
| Aphelion | 799.903 Gm (5.347 AU) |
| Perihelion | 765.616 Gm (5.118 AU) |
| 782.759 Gm (5.232 AU) | |
| Eccentricity | 0.022 |
| 4371.724 d(11.97 a) | |
Average orbital speed | 13.02 km/s |
| 160.599° | |
| Inclination | 5.644° |
| 240.368° | |
| Physical characteristics | |
| Dimensions | 72.0 km |
| Mass | 3.9×1017 kg |
Mean density | 2.0 g/cm³ |
Equatorial surface gravity | 0.0201 m/s² |
Equatorial escape velocity | 0.0381 km/s |
Sidereal rotation period | ? d |
| ?° | |
Pole ecliptic latitude | ? |
Pole ecliptic longitude | ? |
| 0.10 | |
| Temperature | ~122 K |
| ? | |
| 10.3 | |
|
| |
1647 Menelaus is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Menelaus. It was discovered by Seth Barnes Nicholson on June 23, 1957 in Palomar, California at the Palomar Observatory.
External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
| ||||||
| ||||||||||||||||||||||||||||