332 Siri
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelburg |
| Discovery date | 19 March 1892 |
| Designations | |
| A896 BA, A922 XA | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 124.05 yr (45308 d) |
| Aphelion | 3.0216 AU (452.02 Gm) |
| Perihelion | 2.5269 AU (378.02 Gm) |
| 2.7742 AU (415.01 Gm) | |
| Eccentricity | 0.089172 |
| 4.62 yr (1687.8 d) | |
Average orbital speed | 17.89 km/s |
| 186.290° | |
| 0° 12m 47.88s / day | |
| Inclination | 2.8473° |
| 31.575° | |
| 296.463° | |
| Earth MOID | 1.51646 AU (226.859 Gm) |
| Jupiter MOID | 2.24708 AU (336.158 Gm) |
| Jupiter Tisserand parameter | 3.328 |
| Proper orbital elements | |
Proper mean motion | 77.941 deg / yr |
Proper orbital period |
4.61888 yr (1687.045 d) |
| Physical characteristics | |
| Dimensions | 40.37±1.8 km |
| 8.0074 h (0.33364 d) | |
| 0.1719±0.017 | |
| Temperature | ~160 K (equilibrium)[2] |
| 9.7,[1] 9.65[3] | |
|
| |
332 Siri is a main belt asteroid in orbit around the Sun. It was discovered by German astronomer Max Wolf on March 19, 1892 in Heidelberg.[3] The origin of this asteroid's name is unclear. On October 5, 2092, 332 Siri will pass 4,981,670 km (3,095,470 mi) from the asteroid 29 Amphitrite with a relative velocity of 2.054 kilometers per second.[1]
References
- 1 2 3 "332 Siri". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 332. Retrieved 11 May 2016.
- ↑ "Planetary Habitability Calculators". Planetary Habitability Laboratory. University of Puerto Rico at Arecibo. Retrieved 27 November 2015.
- 1 2 Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin, 34, pp. 113–119, Bibcode:2007MPBu...34..113W.
External links
- 332 Siri at the JPL Small-Body Database
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