4936 Butakov

4936 Butakov
Discovery [1]
Discovered by L. V. Zhuravleva
Discovery site CrAO – Nauchnyj
Discovery date 22 October 1985
Designations
MPC designation 4936 Butakov
Named after
 Grigory Butakov
(Russian admiral)[2]
1985 UY4 · 1978 TK4
1978 VH12
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 65.06 yr (23,762 days)
Aphelion 2.5624 AU
Perihelion 1.9902 AU
2.2763 AU
Eccentricity 0.1256
3.43 yr (1,254 days)
201.01°
Inclination 5.9129°
155.77°
283.87°
Physical characteristics
Dimensions 4.867±0.025 km[4]
5.41 km (calculated)[3]
13.828±0.001 h[5]
13.9078±0.3029 h[6]
19.200±0.380 h[7]
0.3589±0.0587[4]
0.24 (assumed)[3]
S [3]
13.5[1]

    4936 Butakov, provisional designation 1985 UY4, is a stony asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered on 22 October 1985, by Soviet–Ukrainian female astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula.[8]

    The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.6 AU once every 3 years and 5 months (1,254 days). Its orbit shows an eccentricity of 0.13 and is tilted by 6 degrees to the plane of the ecliptic.[1]

    According to the survey carried out by the U.S. Wide-field Infrared Survey Explorer with its NEOWISE mission, the asteroid's surface has a notably high albedo of 0.36, while the Collaborative Asteroid Lightcurve Link assumes a more moderate value of 0.24, which is also identical to the albedo of the Flora family's namesake, the asteroid 8 Flora.[3][4] Two photometric light-curve analysis rendered rotation period of 13.8 and 13.9 hours, respectively, with a third observation that gave a divergent period of 19.2 hours.[5][6][7]

    The minor planet was named in memory of Russian admiral Grigory Butakov (1820–1882), who fought in the Crimean War and drew up the first systematic directions for sailing in the Black Sea. In 1856 he became commander-in-chief of the Black Sea Fleet and the military governor of Nikolaev and Sevastopol. The minor planet 2121 Sevastopol is named after the city on the Crimean peninsula.[2] Butakov is widely credited as being the father of steam-powered ship tactics during the 19th century.

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 4936 Butakov (1985 UY4)" (2015-08-05 last obs.). Jet Propulsion Laboratory. Retrieved January 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (4936) Butakov. Springer Berlin Heidelberg. p. 425. ISBN 978-3-540-29925-7. Retrieved January 2016.
    3. 1 2 3 4 5 "LCDB Data for (4936) Butakov". Asteroid Lightcurve Database (LCDB). Retrieved January 2016.
    4. 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 January 2016.
    5. 1 2 Pray, Donald P.; Galad, Adrian; Husarik, Marek; Oey, Julian (March 2008). "Lightcurve Analysis of Fourteen Asteroids". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 35 (1): 34–36. Bibcode:2008MPBu...35...34P. ISSN 1052-8091. Retrieved January 2016.
    6. 1 2 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved January 2016.
    7. 1 2 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series 219 (2): 19. arXiv:1506.08493. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved January 2016.
    8. ↑ "4936 Butakov (1985 UY4)". Minor Planet Center. Retrieved January 2016.

    External links


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