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1437 Diomedes

1437 Diomedes
Discovery[1] and designation
Discovered by Karl Wilhelm Reinmuth
Discovery date August 3, 1937
Named after Diomedes
Alternative names 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)
Semi-major axis 772.520 Gm (5.164 AU)
Eccentricity 0.043
Orbital period 4286.226 d(11.74 a)
Average orbital speed 13.10 km/s
Mean anomaly 287.280°
Inclination 20.515°
Longitude of ascending node 315.828°
Physical characteristics
Dimensions 164.3 km (IRAS)[1]
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
Sidereal rotation period 24.46 hr[1]
Axial tilt
Pole ecliptic latitude ?
Pole ecliptic longitude ?
Geometric albedo 0.03[1]
Temperature ~122 K
Spectral type ?
Absolute magnitude (H) 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]


External links

  • Ephemeris
  • Size and Shape of Trojan Asteroid Diomedes from Its Occultation and Photometry (284×126×65)
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