| Discovery | |
|---|---|
| Discovered by | T. Smirnova |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 30 June 1970 |
| Designations | |
| MPC designation | (2139) Makharadze |
| Named after | Ozurgeti (Georgian city) |
| Alternative designations | 1970 MC · 1928 TF 1955 SS1 · 1955 UA1 1970 PJ · 1974 QN 1977 ER1 · A924 RB |
| Minor planet category | main-belt · Nysa |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 91.98 yr (33,594 days) |
| Aphelion | 2.9242 AU |
| Perihelion | 1.9997 AU |
| Semi-major axis | 2.4619 AU |
| Eccentricity | 0.1878 |
| Orbital period (sidereal) | 3.86 yr (1,411 days) |
| Mean anomaly | 54.791° |
| Mean motion | 0° 15 18.36 / day |
| Inclination | 2.1801° |
| Longitude of ascending node | 256.16° |
| Argument of perihelion | 67.561° |
| Physical characteristics | |
| Dimensions | 8 km (calculated) 17.240±0.092 km |
| Synodic rotation period | 11.9759 h |
| Geometric albedo | 0.045±0.007 |
| Spectral type | Tholen = F · F B–V = 0.653 U–B = 0.231 |
| Absolute magnitude (H) | 12.80 |
2139 Makharadze, provisional designation 1970 MC, is a rare-type Nysa asteroid from the inner region of the asteroid belt, approximately 14 kilometres (8.7 mi) in diameter. It was discovered on 30 June 1970, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj.
Orbit and classification
Makharadze belongs to the Nysa family of asteroids. It orbits the Sun in the inner main-belt at a distance of 2.0–2.9 AU once every 3 years and 10 months (1,411 days). Its orbit has an eccentricity of 0.19 and an inclination of 2° with respect to the ecliptic.
Physical characteristics
In the Tholen classification, Makharadze is a F-type asteroid. It has a rotation period of 11.9759 hours with a brightness variation of 0.38 magnitude.
Naming
This minor planet was named after the Georgian city of Ozurgeti, formerly known as Makharadze. Makharadze is the twin city of Genichesk, Tamara Smirnova's Ukrainian birthplace. The approved naming citation was published on 8 February 1982 (M.P.C. 6647).
References
- ^ "JPL Small-Body Database Browser: 2139 Makharadze (1970 MC)" (2016-08-27 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.
- ^ Schmadel, Lutz D. (2007). "(2139) Makharadze". Dictionary of Minor Planet Names – (2139) Makharadze. Springer Berlin Heidelberg. p. 173. doi:10.1007/978-3-540-29925-7_2140. ISBN 978-3-540-00238-3.
- ^ "LCDB Data for (2139) Makharadze". Asteroid Lightcurve Database (LCDB). Retrieved 19 June 2017.
- ^ Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 19 June 2017.
- "2139 Makharadze (1970 MC)". Minor Planet Center. Retrieved 19 June 2017.
- "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 June 2017.
- Pravec, P.; Wolf, M.; Sarounova, L. (2005) http://www.asu.cas.cz/~ppravec/neo.htm
- Pray, D.P.; Galad, A.; Gajdos, S.; Kornos, L.; et al. (2006) Minor Planet Bul. 33, 26.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- 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
- 2139 Makharadze at AstDyS-2, Asteroids—Dynamic Site
- 2139 Makharadze at the JPL Small-Body Database
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