47 Aglaja
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Discovery
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Discovered by | Karl Theodor Robert Luther |
Discovery date | September 15, 1857 |
Designations
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Alternative names | |
Minor planet category |
Main belt |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 488.740 Gm (3.267 AU) |
Perihelion | 372.222 Gm (2.488 AU) |
Semi-major axis | 430.481 Gm (2.878 AU) |
Eccentricity | 0.135 |
Orbital period | 1782.960 d (4.88 a) |
Average orbital speed | 17.48 km/s |
Mean anomaly | 225.007° |
Inclination | 4.985° |
Longitude of ascending node | 3.244° |
Argument of perihelion | 314.589° |
Physical characteristics
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Dimensions | 127.0 km |
Mass | 2.1×1018 kg |
Mean density | ? g/cm³ |
Equatorial surface gravity | 0.0355 m/s² |
Escape velocity | 0.0671 km/s |
Rotation period | ? d |
Albedo | 0.080 [1] |
Temperature | ~164 K |
Spectral type | C |
Absolute magnitude | 7.84 |
47 Aglaja (IPA: /əˈglaɪə/) is a large, dark main belt asteroid. It was discovered by R. Luther on September 15, 1857. It is named after Aglaea, one of the Charites in Greek mythology.
[edit] References
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