1647 Menelaus

From Wikipedia, the free encyclopedia
Jump to: navigation, search
1647 Menelaus
Discovery[1] and designation
Discovered by Seth Barnes Nicholson
Discovery date June 23, 1957
Designations
Named after
Menelaus
1957 MK
Jupiter Trojan
Orbital characteristics[2]
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)
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
? d
?
?
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[edit]