47 Aglaja
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Discovery
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| Discovered by | Robert Luther |
| Discovery date | September 15, 1857 |
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Designations
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| Named after | Aglaea |
| Alternate name(s) | |
| 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° |
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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 (H) | 7.84 |
47 Aglaja (
/əˈɡlaɪ.ə/) is a large, dark main belt asteroid. It was discovered by Robert Luther on September 15, 1857 from Düsseldorf. The name was chosen by the Philosophical Faculty of the University of Bonn and refers to Aglaea, one of the Charites in Greek mythology.[2]
[edit] External links
[edit] References
- ^ Asteroid Data Sets
- ^ Schmadel, Lutz (2003). Dictionary of minor planet names (fifth ed.). Germany: Springer. p. 19. ISBN 3-540-00238-3. http://books.google.com/?id=KWrB1jPCa8AC&pg=PA19. Retrieved 2008-12-29.
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