1170 Siva
| Discovery [1] | |
|---|---|
| Discovered by | E. Delporte |
| Discovery site | Uccle – Belgium |
| Discovery date | 29 September 1930 |
| Designations | |
| MPC designation | 1170 Siva |
|
Named after
|
Shiva (Hindu Deity)[2] |
| 1930 SQ | |
| Mars-crosser [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.93 yr (31,020 days) |
| Aphelion | 3.0235 AU |
| Perihelion | 1.6286 AU |
| 2.3260 AU | |
| Eccentricity | 0.2998 |
| 3.55 yr (1,296 days) | |
| 288.14° | |
| Inclination | 22.185° |
| 0.9220° | |
| 59.308° | |
| Earth MOID | 0.7256 AU |
| Physical characteristics | |
| Dimensions | 10.37 km[4] 12.13±0.89 km[5] |
| 5 h[3] 5.22±0.01 h[6] 4.98 h[lower-alpha 1] 3.5 h[7] |
|
| 0.1751[4] 0.128±0.020[5] |
|
| B–V = 0.864 U–B = 0.452 Tholen = S S [3] |
|
| 12.43 | |
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1170 Siva, provisional designation 1930 SQ, is an eccentric, stony asteroid and large Mars-crosser from the innermost regions of the asteroid belt, about 10 kilometers in diameter. It was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle on 29 September 1930.[8]
The S-type asteroid orbits the Sun at a distance of 1.6–3.0 AU once every 3 years and 7 months (1,296 days). Its orbit shows a high eccentricity of 0.30 and is significantly tilted by 22 degrees to the plane of the ecliptic. It has a rotation period of about 5 hours[lower-alpha 1] and an albedo of 0.18 and 0.13, based on observations collected by the IRAS and Akari satellites, respectively.[4][5] With an absolute magnitude (H) of 12.4, it is brighter than several other, well-known Mars-crossing asteroids[9]
The minor planet is named after Hindu Deity Shiva, often depicted with a third eye on his forehead and a with a snake around his neck.[2]
References
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<references />, or <references group="..." />External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1170 Siva at the JPL Small-Body Database
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