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2093 Genichesk

Main-belt asteroid

Field	Value
minorplanet	yes
name	2093 Genichesk
background	#D6D6D6
discovery_ref
discovered	28 April 1971
discoverer	T. Smirnova
discovery_site	Crimean Astrophysical Obs.
mpc_name	(2093) Genichesk
alt_names	1971 HX

named_after	Henichesk
(Ukrainian town)
mp_category	main-beltBaptistina
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	66.78 yr (24,392 days)
aphelion	2.6507 AU
perihelion	1.8877 AU
semimajor	2.2692 AU
eccentricity	0.1681
period	3.42 yr (1,249 days)
mean_anomaly	175.62°
mean_motion	/ day
inclination	6.0914°
asc_node	154.86°
arg_peri	118.21°
dimensions	km
12.29 km (derived)
rotation	h
h
h
albedo	0.057 (assumed)

spectral_type	C
abs_magnitude	(R)12.913.28

(Ukrainian town) 12.29 km (derived) h h

2093 Genichesk, provisional designation , 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 astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. It was named for the Ukrainian town Henichesk.

Orbit and classification

Genichesk is a member of the Baptistina family. It orbits the Sun in the inner main-belt 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. A first precovery was taken at Palomar Observatory in 1950, extending the body's observation arc by 21 years prior to its official discovery.

Physical characteristics

Diameter and albedo

The Collaborative Asteroid Lightcurve Link 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, 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.

Rotation period

Photometric observations by astronomer Brian D. Warner at the Palmer Divide Observatory in Colorado (716) during winter 2007–2008 were used to build a lightcurve, which gave a rotation period of hours and a brightness variation of in magnitude (). 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 ().

Naming

This minor planet was named after the Ukrainian town Genichesk (Henichesk), the discoverer's birthplace in the former Ukrainian Soviet Socialist Republic. The official naming citation was published by the Minor Planet Center on 1 April 1980 (M.P.C. 5282).

Notes

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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