52 Europa
Large asteroid in the asteroid belt / From Wikipedia, the free encyclopedia
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Europa (minor planet designation: 52 Europa) is the 6th-largest asteroid in the asteroid belt, having a diameter of over 300 km, though it is not correspondingly massive. It is not round but is shaped like an ellipsoid of approximately 380×330×250 km.[4] It was discovered on 4 February 1858, by Hermann Goldschmidt from his balcony in Paris. It is named after Europa, one of Zeus's conquests in Greek mythology, a name it shares with Jupiter's moon Europa.
Quick Facts Discovery, Discovered by ...
Discovery | |
---|---|
Discovered by | H. Goldschmidt |
Discovery date | 4 February 1858 |
Designations | |
(52) Europa | |
Pronunciation | /jʊˈroʊpə/[1] |
Named after | Europa |
1948 LA | |
Main belt | |
Adjectives | Europan, Europian |
Orbital characteristics[2] | |
Epoch July 01, 2021 (JD 2459396.5, heliocentric) | |
Aphelion | 3.444 AU (510 Gm) |
Perihelion | 2.75 AU (420 Gm) |
3.095 AU (460 Gm) | |
Eccentricity | 0.111 |
5.45 yr (1989 d) | |
21° | |
Inclination | 7.48° |
129° | |
343° | |
Physical characteristics | |
Dimensions | c/a = 0.67±0.04[3] (379±16)×(330±8)×(249±10) km[4] |
Mean diameter | 319±4 km[3] 315±7 km[4] |
Mass | (24±4)×1018 kg[3] (22.6±1.6)×1018 kg[lower-alpha 1][5] |
Mean density | 1.41±0.23 g/cm3[3] 1.5±0.4 g/cm3[4] |
5.63 h[2] | |
0.057±0.007 geometric (0.679±0.017 BV, 0.338±0.028 UB)[2] | |
Temperature | ~173 K max: 258K (−15 °C)[6] |
C/CF[2] | |
6.48[2] | |
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