Discovery[1] | |
---|---|
Discovered by | S. Arend |
Discovery site | Uccle Obs. |
Discovery date | 19 September 1950 |
Designations | |
(1583) Antilochus | |
Pronunciation | /ænˈtɪləkəs/[2] |
Named after | Antilochus (Greek mythology)[3] |
1950 SA · 1926 VF 1974 WH1 | |
Jupiter trojan[1][4][5] Greek[6][7] · background[7] | |
Adjectives | Antilochian |
Orbital characteristics[4] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 91.53 yr (33,430 d) |
Aphelion | 5.3959 AU |
Perihelion | 4.8644 AU |
5.1301 AU | |
Eccentricity | 0.0518 |
11.62 yr (4,244 d) | |
256.95° | |
0° 5m 5.28s / day | |
Inclination | 28.512° |
221.38° | |
187.27° | |
Jupiter MOID | 0.0264 AU |
TJupiter | 2.7570 |
Physical characteristics | |
101.62±3.2 km[8] 108.84±0.54 km[9] 111.69±3.86 km[10] | |
15.889±0.005 h[11][a] | |
0.053±0.004[10] 0.054±0.004[9] 0.0633±0.004[8] | |
D (Tholen)[5][12] D0 (Barucci)[12] D (Tedesco)[12] U–B = 0.253±038[12] B–V = 0.752±020[12] V–I = 0.950±0.043[5] BR = 1.220±0.109[5] | |
8.58[8] 8.59±0.06[5][13][14] 8.60[1][4][9][10] | |
1583 Antilochus /ænˈtɪləkəs/ is a large Jupiter trojan from the Greek camp, approximately 108 kilometers (67 miles) in diameter. It was discovered on 19 September 1950, by Belgian astronomer Sylvain Arend at Uccle Observatory in Belgium, and later named after the hero Antilochus from Greek mythology.[1] The dark D-type asteroid belongs to the 20 largest Jupiter trojans and has a rotation period of 15.9 hours.[5] It forms an asteroid pair with 3801 Thrasymedes.
MPC-object
was invoked but never defined (see the help page).springer
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