3548 Eurybates
Asteroid satellite / From Wikipedia, the free encyclopedia
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3548 Eurybates (/jʊˈrɪbətiːz/ yə-RIB-ə-teez) is a carbonaceous Jupiter trojan from the Greek camp and the parent body of the Eurybates family, approximately 68 kilometers (42 miles) in diameter. It is a target to be visited by the Lucy mission in August 2027. Discovered during the second Palomar–Leiden Trojan survey in 1973, it was later named after Eurybates from Greek mythology. This C-type asteroid is among the 60 largest known Jupiter trojans and has a rotation period of 8.7 hours. Eurybates has one kilometer-sized satellite, named Queta, that was discovered in images taken by the Hubble Space Telescope in September 2018.
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | C. J. van Houten I. van Houten-G. Tom Gehrels |
Discovery site | Palomar Obs. |
Discovery date | 19 September 1973 |
Designations | |
(3548) Eurybates | |
Pronunciation | /jʊˈrɪbətiːz/[2] |
Named after | Eurybates [3] (Greek mythology) |
1973 SO · 1954 CB 1957 JX · 1978 EE5 1985 TZ | |
Jupiter trojan [1][4][5] Greek [6][7] Eurybates [7][8] binary | |
Adjectives | Eurybatian |
Orbital characteristics[4] | |
Epoch 25 February 2023 (JD 2460000.5) | |
Uncertainty parameter 0 | |
Earliest precovery date | 9 February 1954[1] |
Aphelion | 5.680 AU |
Perihelion | 4.733 AU |
5.206 AU | |
Eccentricity | 0.0909 |
11.88 yr (4,339 d) | |
27.507° | |
0° 4m 58.682s / day | |
Inclination | 8.054° |
43.542° | |
27.481° | |
Jupiter MOID | 0.1092 AU |
TJupiter | 2.972 |
Physical characteristics | |
Dimensions | 77.5 × 71.3 × 61.8 km[9] |
Mean diameter | 69.3±1.4 km (area equivalent)[9] |
Mass | (1.51±0.03)×1017 kg[10] |
Mean density | 1.1±0.3 g/cm3[10] |
8.7027283±0.0000029 h[9] | |
150° (wrt ecliptic)[9] 158° (wrt orbit)[9] | |
Pole ecliptic latitude | −60°[9] |
Pole ecliptic longitude | 320°[9] |
0.044±0.003[9] | |
C[11][9] B–V = 0.739±0.026[9] V–R = 0.384±0.021[9] V–I = 0.355±0.015[9] | |
16.2 to 18.1 | |
9.800±0.007[9] | |
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