1437 Diomedes

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1437 Diomedes
Discovery[1] and designation
Discovered by Karl Wilhelm Reinmuth
Discovery date August 3, 1937
Designations
Named after
Diomedes
1937 PB
Minor planet category Jupiter Trojan
Orbital characteristics[1]
Epoch February 4, 2008 (JD 2454500.5)
Aphelion 806.077 Gm (5.388 AU)
Perihelion 738.963 Gm (4.940 AU)
772.520 Gm (5.164 AU)
Eccentricity 0.043
4286.226 d(11.74 a)
13.10 km/s
287.280°
Inclination 20.515°
315.828°
Physical characteristics
Dimensions 164.3 ± 4.1 km (IRAS)[1]
~(284×126×65)[2]
Mass 4.6×1018 kg
Mean density
2.0 g/cm³
Equatorial surface gravity
0.0459 m/s²
Equatorial escape velocity
0.0869 km/s
24.46 hr[1]
?
?
0.03[1]
Temperature ~122 K
?
8.30[1]

1437 Diomedes is a large 164 km Jupiter trojan asteroid that orbits in the L4 Lagrangian point of the SunJupiter system, in the "Greek Camp" of Trojan asteroids. Based on IRAS data, Diomedes is 164 km in diameter and is the 3rd largest Jupiter Trojan.[3] It was named after the Greek hero Diomedes. It was discovered by Karl Wilhelm Reinmuth on August 3, 1937, in Heidelberg, Germany.[1]

JPL Small-Body Database list of the largest Jupiter Trojans based on IRAS data:
Trojan Diameter (km)
624 Hektor 225
911 Agamemnon 167
1437 Diomedes 164
1172 Äneas 143
617 Patroclus 141
588 Achilles 135
1173 Anchises 126
1143 Odysseus 126

References[edit]

  1. ^ a b c d e f "JPL Small-Body Database Browser: 1437 Diomedes (1937 PB)". 2008-01-18 last obs. Retrieved 2008-05-23. 
  2. ^ Sato, Isao; Šarounová, Lenka; Fukushima, Hideo (2000). "Size and Shape of Trojan Asteroid Diomedes from Its Occultation and Photometry". Icarus 145 (1): 25–32. Bibcode:2000Icar..145...25S. doi:10.1006/icar.1999.6316. 
  3. ^ "JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km)". JPL's Solar System Dynamics Group. Retrieved 2012-03-28. 

External links[edit]