2296 Kugultinov, provisional designation 1975 BA1, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 20 kilometers in diameter.
| Discovery [1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 18 January 1975 |
| Designations | |
| (2296) Kugultinov | |
Named after | David Kugultinov (Soviet poet)[2] |
| 1975 BA1 · 1941 FM 1958 DF · 1975 CE 1978 RM1 | |
| main-belt · Themis [3] | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 75.44 yr (27,556 days) |
| Aphelion | 3.7113 AU |
| Perihelion | 2.6512 AU |
| 3.1813 AU | |
| Eccentricity | 0.1666 |
| 5.67 yr (2,073 days) | |
| 180.53° | |
| 0° 10m 25.32s / day | |
| Inclination | 1.2545° |
| 42.238° | |
| 100.14° | |
| Physical characteristics | |
| Dimensions | 15.10±4.45 km[4] 20.51 km (calculated)[3] 21.07±1.77 km[5] 21.566±0.067 km[6][7] |
| 8.43±0.02 h[8] 10 h[9] 16.850±0.004 h[10] | |
| 0.08 (assumed)[3] 0.083±0.004[6][7] 0.120±0.021[5] 0.12±0.06[4] | |
| C [3] | |
| 11.3[5] · 11.6[6] · 11.7[1][3] · 11.77±0.23[11] · 1.80[3] · 11.94[4] | |
It was discovered on 18 January 1975, by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory on the Crimean peninsula in Nauchnyj, and named after Soviet poet David Nikitich Kugultinov.[2][12]
Classification and orbit
editKugultinov is a carbonaceous C-type asteroid and member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.7–3.7 AU once every 5 years and 8 months (2,073 days). Its orbit has an eccentricity of 0.17 and an inclination of 1° with respect to the ecliptic.[1]
Physical characteristics
editDiameter and albedo
editAccording to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer and the Japanese Akari satellite, Kugultinov measures between 15.10 and 21.566 kilometers in diameter and its surface has an albedo between 0.083 and 0.12.[4][5][6][7] The Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.08 and calculates a diameter of 20.51 kilometers based an absolute magnitude of 11.8.[3]
Lightcurves
editThree different rotational lightcurves of Kugultinov were obtain from photometric observations. The first, fragmentary lightcurve by Roberto Crippa and Federico Manzini in December 2013, gave a rotation period of 10 hours with a brightness variation of 0.03 magnitude (U=1).[9] In April 2015, the result was superseded by observations made by Kim Lang at the Klokkerholm Observatory in Denmark,[a] and by a team at the U.S. University of Maryland using the iTelescope network,[b] obtaining a period of 16.850 (U=2) and 8.4332±0.0224 hours (U=2+) with an amplitude of 0.23 and 0.19, respectively.[8][10] CALL considers the shorter period solution the better result.[3]
Naming
editThis minor planet was named after David Nikitich Kugultinov (1922–2006), prominent Soviet poet and national poet of the Republic of Kalmykia (also see 2287 Kalmykia).[2] The approved naming citation was published by the Minor Planet Center on 2 December 1990 (M.P.C. 17465).[13]
Notes
edit- ^ The minor planet 2296 Kugultinov was observed on 13 nights between 2015 March 13 and April 21. The analysis yielded a synodic period of rotation of P = 16.850 ± 0.004 h and amplitude of A = 0.23 mag. This result is in disagreement with a previously reported period of P = 10.41 h.
- ^ Photometric observations of main-belt asteroid 2296 Kugultinov were made over a period of five nights spanning 2015 March 27 to April 20. The measured rotation period is 8.4332 ± 0.0224 h.
References
edit- ^ a b c d "JPL Small-Body Database Browser: 2296 Kugultinov (1975 BA1)" (2016-08-27 last obs.). Jet Propulsion Laboratory. Retrieved 3 July 2017.
- ^ a b c Schmadel, Lutz D. (2007). "(2296) Kugultinov". Dictionary of Minor Planet Names – (2296) Kugultinov. Springer Berlin Heidelberg. p. 187. doi:10.1007/978-3-540-29925-7_2297. ISBN 978-3-540-00238-3.
- ^ a b c d e f g h "LCDB Data for (2296) Kugultinov". Asteroid Lightcurve Database (LCDB). Retrieved 24 June 2016.
- ^ a b c d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63.
- ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
- ^ a b c d 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. S2CID 35447010. Retrieved 24 June 2016.
- ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID 118745497. Retrieved 7 December 2016.
- ^ a b Hayes-Gehrke, Melissa N.; Chapin, Rebecca; Cromwell, Samuel; Castro, David; Spano, Francesca; Kyung, Justin; et al. (October 2015). "Rotation Period Determination for 2996 Kugultinov". The Minor Planet Bulletin. 42 (4): 241. Bibcode:2015MPBu...42Q.241H. ISSN 1052-8091. Retrieved 24 June 2016.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2296) Kugultinov". Geneva Observatory. Retrieved 24 June 2016.
- ^ a b Lang, Kim; Jacobsen, Jens (October 2015). "A New Synodic Period for 2296 Kugultinov". The Minor Planet Bulletin. 42 (4): 284–285. Bibcode:2015MPBu...42..284L. ISSN 1052-8091. Retrieved 24 June 2016.
- ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339. Retrieved 24 June 2016.
- ^ "2296 Kugultinov (1975 BA1)". Minor Planet Center. Retrieved 24 June 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 24 June 2016.
External links
edit- 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
- 2296 Kugultinov at AstDyS-2, Asteroids—Dynamic Site
- 2296 Kugultinov at the JPL Small-Body Database
