2093 Genichesk

2093 Genichesk
Discovery [1]
Discovered by T. Smirnova
Discovery site Crimea–Nauchnij Obs.
Discovery date 28 April 1971
Designations
MPC designation 2093 Genichesk
Named after
 Henichesk
(Ukrainian town)[2]
1971 HX · 1974 CN1
1975 VG2
main-belt · Baptistina [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 66.32 yr (24,222 days)
Aphelion 2.6506 AU
Perihelion 1.8885 AU
2.2695 AU
Eccentricity 0.1679
3.42 yr (1,249 days)
60.304°
0° 17m 17.88s / day
Inclination 6.0915°
154.86°
118.22°
Physical characteristics
Dimensions 8.804±1.922 km[4]
12.29 km (derived)[3]
11.022±0.002 h[5]
11.0231±0.0159 h[6]
11.028±0.006 h[7]
0.057 (assumed)[3]
0.158±0.108[4]
C [3]
12.880±0.004 (R)[6]
12.9[1]
13.28±0.04[8]
13.28±0.19[9]
13.28[3]

    2093 Genichesk, provisional designation 1971 HX, is a Baptistina asteroid from the inner regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 28 April 1971, by Russian female astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[10]

    The asteroid is a member of the Baptistina family. It orbits the Sun at a distance of 1.9–2.7 AU once every 3 years and 5 months (1,249 days). Its orbit has an eccentricity of 0.17 and an inclination of 6° with respect to the ecliptic.[1] The first precovery was taken at Palomar Mountain in 1950, extending the asteroid's observation arc by 21 years prior to its discovery.[10]

    The Collaborative Asteroid Lightcurve Link (CALL) assumes a standard albedo for carbonaceous C-type asteroids of 0.57 and calculates a diameter of 12.29 kilometers, based on an absolute magnitude of 13.28,[3] while according to preliminary data from the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid's surface has a much higher albedo of 0.158 and only measures 8.8 kilometers in diameter.[4]

    Photometric observations by astronomer Brian D. Warner at the Palmer Divide Observatory in Colorado (also see video § External links) during the winter of 2007–2008 were used to build a light-curve, which gave a rotation period of 11.028±0.006 hours and a brightness variation of 0.24±0.02 in magnitude (U=3).[7] The results concur with observations made by French amateur astronomers Stéphane Charbonnel and Laurent Bernasconi, and with analysed data from the Palomar Transient Factory Survey in 2004 and 2015, respectively (U=2/2).[5][6]

    The asteroid was named after the Ukrainian town Genichesk (Henichesk), the discoverer's birthplace in the former Ukrainian Soviet Socialist Republic[2] Naming citation was published on 1 April 1980 (M.P.C. 5282).[11]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2093 Genichesk (1971 HX)" (2016-08-10 last obs.). Jet Propulsion Laboratory. Retrieved 26 October 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (2093) Genichesk. Springer Berlin Heidelberg. p. 170. ISBN 978-3-540-00238-3. Retrieved 26 October 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (2093) Genichesk". Asteroid Lightcurve Database (LCDB). Retrieved 26 October 2016.
    4. 1 2 3 Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522Freely accessible. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 26 October 2016.
    5. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (2093) Genichesk". Geneva Observatory. Retrieved 26 October 2016.
    6. 1 2 3 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 26 October 2016.
    7. 1 2 Warner, Brian D. (September 2008). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: December 2007 - March 2008" (PDF). The Minor Planet Bulletin. 35 (3): 95–98. Bibcode:2008MPBu...35...95W. ISSN 1052-8091. Retrieved 26 October 2016.
    8. ↑ Dymock, Roger (April 2010). "Absolute Magnitudes of Asteroids 1176 Lucidor and 2093 Genichesk". The Minor Planet Bulletin. 37 (2): 56. Bibcode:2010MPBu...37...56D. ISSN 1052-8091. Retrieved 26 October 2016.
    9. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 26 October 2016.
    10. 1 2 "2093 Genichesk (1971 HX)". Minor Planet Center. Retrieved 26 October 2016.
    11. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 26 October 2016.

    External links

    This article is issued from Wikipedia - version of the 10/26/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.