2456 Palamedes

2456 Palamedes
Discovery [1]
Discovered byPurple Mountain Obs.
Discovery sitePurple Mountain Obs.
Discovery date30 January 1966
Designations
(2456) Palamedes
Pronunciation/pæləˈmiːdiːz/[2]
Named after
Palamedes [3]
(Greek mythology)
1966 BA1 · 1973 TJ
1977 AK1 · 1979 EF
Jupiter trojan [1][4][5]
Greek [6][7]
AdjectivesPalamedian
Orbital characteristics [4]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc65.59 yr (23,955 d)
Aphelion5.5103 AU
Perihelion4.7498 AU
5.1301 AU
Eccentricity0.0741
11.62 yr (4,244 d)
260.35°
0° 5m 5.28s / day
Inclination13.912°
327.36°
94.744°
Jupiter MOID0.1197 AU
TJupiter2.9370
Physical characteristics
65.92±0.51 km[8]
91.66±3.1 km[9]
99.60±4.11 km[10]
7.24±0.01 h[11]
0.026±0.002[10]
0.0304±0.002[9]
0.071±0.010[8]
C (assumed)[5]
V–I = 0.920±0.024[5]
9.3[1][4][5]
9.4[8]
9.60[10]

2456 Palamedes /pæləˈmiːdiːz/ is a large Jupiter trojan from the Greek camp, approximately 90 kilometers (56 miles) in diameter. It was discovered on 30 January 1966, by astronomers at the Purple Mountain Observatory in Nanking, China.[1] The assumed C-type asteroid has a rotation period of 7.24 hours and belongs to the 50 largest Jupiter trojans.[5] It was named after Palamedes from Greek mythology.[3]

  1. ^ a b c d 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 Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference MPC-Jupiter-Trojans was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Grav-2012 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Stephens-2010c was invoked but never defined (see the help page).