2920 Automedon

2920 Automedon
Discovery [1]
Discovered byE. Bowell
Discovery siteAnderson Mesa Stn.
Discovery date3 May 1981
Designations
(2920) Automedon
Pronunciation/ɔːˈtɒmɪdɒn/[2]
Named after
Automedon [1]
(Greek mythology)
1981 JR
Jupiter trojan [1][3][4]
Greek [5][6] · background [6]
AdjectivesAutomedontian
Orbital characteristics [3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc36.97 yr (13,502 d)
Aphelion5.2417 AU
Perihelion4.9742 AU
5.1079 AU
Eccentricity0.0262
11.54 yr (4,217 d)
221.03°
0° 5m 7.44s / day
Inclination21.121°
230.94°
197.70°
Jupiter MOID0.0311 AU
TJupiter2.8670
Physical characteristics
88.57±1.80 km[7]
111.01±7.5 km[8]
113.11±2.25 km[9]
10.212±0.002 h[10]
10.220±0.004 h[11]
10.223±0.003 h[12][a]
0.042±0.002[9]
0.0433±0.007[8]
0.068±0.009[7]
D (SMASS-1)[13]
C (assumed)[4]
V–I = 0.950±0.015[4]
8.59±0.21[14]
8.80[3][7][8][9]

2920 Automedon /ɔːˈtɒmɪdɒn/ is a large Jupiter trojan from the Greek camp, approximately 110 kilometers (68 miles) in diameter. It was discovered by American astronomer Edward Bowell at the Anderson Mesa station of the Lowell Observatory on 3 May 1981.[1] The dark D-type asteroid has a rotation period of 10.22 hours and belongs to the 30 largest Jupiter trojans.[4] It was named after the ancient Greek hero Automedon, the charioteer of Achilles.[1]

  1. ^ a b c d e Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  4. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference MPC-Jupiter-Trojans was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Grav-2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Molnar-2008b was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Mottola-2011 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Stephens-2017h was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).


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