1857 Parchomenko
| Discovery [1] | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | CrAO - Nauchnyj |
| Discovery date | 30 August 1971 |
| Designations | |
| MPC designation | 1857 Parchomenko |
Named after |
P. Parchomenko (astronomer)[2] |
|
1971 QS1 · 1931 XT 1941 WJ · 1974 OE1 | |
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.89 yr (30,639 days) |
| Aphelion | 2.5448 AU |
| Perihelion | 1.9425 AU |
| 2.2436 AU | |
| Eccentricity | 0.1342 |
| 3.36 yr (1,228 days) | |
| 324.79° | |
| Inclination | 4.3962° |
| 236.10° | |
| 173.67° | |
| Physical characteristics | |
| Dimensions |
8.513±0.184 km[4] 9.84 km (calculated)[3] |
|
3.1177 h[5] 3.08±0.01 h[6] | |
|
0.2952±0.0580[4] 0.20 (assumed)[3] | |
| SMASS = S | |
| 12.4 | |
|
| |
1857 Parchomenko, provisional designation 1971 QS1, is a stony asteroid from the inner regions of the asteroid belt. It was discovered by Russian astronomer Tamara Smirnova at Crimean Astrophysical Observatory in Nauchnyj on 30 August 1971.[7]
The S-type asteroid measures about 9 kilometers in diameter.[4] Observations in 2006 suggested that it may be binary asteroid.[5] However, no new findings have been made since. It orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,228 days). Parchomenko has a rotation period of 3.1 hours[5][6] and a geometric albedo of 0.2952±0.0580 and 0.20, according to the NEOWISE mission and assumption made by the LCDB project, respectively.
It was named in honor of female astronomer Praskoviya Georgievna Parchomenko (1886–1970), who observed and discovered several minor planets such as 1129 Neujmina and 1166 Sakuntala, at the Crimean Simeiz Observatory during the 1930s and 1940s.[2]
References
- 1 2 "JPL Small-Body Database Browser: 1857 Parchomenko (1971 QS1)" (2015-10-24 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1857) Parchomenko. Springer Berlin Heidelberg. p. 149. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 "LCDB Data for (1857) Parchomenko". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
- 1 2 3 Stephens, Robert D.; Warner, Brian D.; Pravec, Petr (September 2006). "1857 Parchomenko: a possible main-belt binary asteroids". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 33 (3): 52. Bibcode:2006MPBu...33...52S. ISSN 1052-8091. Retrieved November 2015.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1857) Parchomenko". Geneva Observatory. Retrieved November 2015.
- ↑ "1857 Parchomenko (1971 QS1)". Minor Planet Center. Retrieved November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Geneve, Raoul Behrend
- 1857 Parchomenko at the JPL Small-Body Database
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