2456 Palamedes

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2456 Palamedes
Discovery[1] and designation
Discovered by Purple Mountain Observatory
Discovery date January 30, 1966
Designations
1966 BA1
Minor planet category Jupiter Trojan
Orbital characteristics[2]
Epoch February 4, 2008 (JD 2454500.5)
Aphelion 826.050 Gm (5.522 AU)
Perihelion 710.392 Gm (4.749 AU)
768.221 Gm (5.135 AU)
Eccentricity 0.075
4250.496 d (11.64 a)
13.12 km/s
272.936°
Inclination 13.907°
327.408°
Physical characteristics
Dimensions 91.7 km
Mass 8.1×1017 kg
Mean density
2.0 g/cm³
Equatorial surface gravity
0.0256 m/s²
Equatorial escape velocity
0.0485 km/s
0.10
Temperature ~123 K
9.6

2456 Palamedes 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 Palamedes. It was discovered by the Purple Mountain Observatory in Nanjing, China on January 30, 1966.

Photometric observations of this asteroid during 1995 were used to build a light curve showing a rotation period of 7.258 ± 0.004hours with a brightness variation of 0.05 ± 0.01 magnitude.[1]

References[edit]

  1. ^ Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170.  edit

External links[edit]