287 Nephthys
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| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | August 25, 1889 |
| Designations | |
| Named after | Nephthys |
| Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 360.26 Gm (2.408 AU) |
| Perihelion | 343.744 Gm (2.298 AU) |
| Semi-major axis | 352.002 Gm (2.353 AU) |
| Eccentricity | 0.023 |
| Orbital period | 1318.315 d (3.61 a) |
| Average orbital speed | 19.42 km/s |
| Mean anomaly | 59.725° |
| Inclination | 10.023° |
| Longitude of ascending node | 142.493° |
| Argument of perihelion | 120.15° |
| Physical characteristics | |
| Dimensions | 68.0 km |
| Spectral type | S |
| Absolute magnitude (H) | 8.26[2] |
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287 Nephthys is a large Main belt asteroid that was discovered by German-American astronomer C. H. F. Peters on August 25, 1889 in Clinton, New York and named after Nephthys in Egyptian mythology.[3] It is classified as an S-type asteroid.
References
- ↑ Yeomans, Donald K., "287 Nephthys", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-25.
- ↑ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 34: 113–119, Bibcode:2007MPBu...34..113W.
- ↑ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names, Springer, p. 38, ISBN 3642297188.
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