5381 Sekhmet: Difference between revisions
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Revision as of 05:16, 10 September 2016
| Discovery [1] | |
|---|---|
| Discovered by | C. S. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 14 May 1991 |
| Designations | |
| 5381 Sekhmet | |
Named after | Sekhmet (Egyptian mythology)[2] |
| 1991 JY | |
| Aten · NEO | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 24.00 yr (8,765 days) |
| Aphelion | 1.2281 AU |
| Perihelion | 0.6667 AU |
| 0.9474 AU | |
| Eccentricity | 0.2962 |
| 0.92 yr (337 days) | |
| 165.44° | |
| Inclination | 48.968° |
| 58.546° | |
| 37.429° | |
| Earth MOID | 0.1123 AU |
| Physical characteristics | |
| Dimensions | 1.42 km[3] |
| 2.8233 h | |
| S[3] | |
| 16.6[1] | |
5381 Sekhmet is an Aten asteroid whose orbit is sometimes closer to the Sun than the Earth's. It was discovered on 14 May 1991 by Carolyn Shoemaker at Palomar Observatory. It is named after Sekhmet, the Egyptian goddess of war.[2]
Sekhmet is believed to be an S-type asteroid, and believed by some to measure approximately 1.4 km in diameter.[3][4]
In December 2003, a team of astronomers at Arecibo Observatory announced that the asteroid may have a moon that measures 300 m in diameter and orbits approximately 1.5 km from Sekhmet.[4] This moon is not yet confirmed.
References
- ^ a b c "JPL Small-Body Database Browser: 5381 Sekhmet (1991 JY)" (2015-05-13 last obs.). Jet Propulsion Laboratory. Retrieved 7 January 2016.
- ^ a b "5381 Sekhmet (1991 JY)". Minor Planet Center. Retrieved 7 January 2016.
- ^ a b c "LCDB Data for (5381) Sekhmet". Asteroid Lightcurve Database (LCDB). Retrieved 7 January 2016.
- ^ a b Neish, C. D.; et al. (December 2003), "Radar Observations of Binary Asteroid 5381 Sekhmet", Bulletin of the American Astronomical Society, 35: 1421, Bibcode:2003AAS...20313402N
