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1956 Artek - Wikipedia

From Wikipedia, the free encyclopedia

1956 Artek
Discovery^[1]
Discovered by	L. Chernykh
Discovery site	Crimean Astrophysical Obs.
Discovery date	8 October 1969
Designations
MPC designation	(1956) Artek
Named after	Artek (Арте́к) (Young Pioneer camp)^[2]
Alternative designations	1969 TX₁ · 1975 TA₆
Minor planet category	main-belt · Themis^[3]
Orbital characteristics^[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	63.16 yr (23,069 days)
Aphelion	3.5304 AU
Perihelion	2.8760 AU
Semi-major axis	3.2032 AU
Eccentricity	0.1022
Orbital period (sidereal)	5.73 yr (2,094 days)
Mean anomaly	11.877°
Mean motion	0° 10^m 18.84^s / day
Inclination	1.4928°
Longitude of ascending node	153.36°
Argument of perihelion	346.60°
Physical characteristics
Dimensions	17.97±0.91 km^[4] 18.71 km (calculated)^[3] 19.92±3.55 km^[5]
Synodic rotation period	9.4±0.2 h^[1]^[6]
Geometric albedo	0.074±0.033^[5] 0.08 (assumed)^[3] 0.099±0.011^[4]
Spectral type	C^[3]
Absolute magnitude (H)	11.90^[4] · 11.95^[5] · 12.08±0.41^[7] · 12.1^[1]^[3]

1956 Artek, provisional designation 1969 TX₁, is a dark Themistian asteroid from the outer regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 8 October 1969, by Soviet–Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj.^[8] It was named after Artek, a Soviet Young Pioneer camp.^[2]

Orbit and classification

Artek is a dark C-type asteroid and a 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 2.9–3.5 AU once every 5 years and 9 months (2,094 days). Its orbit has an eccentricity of 0.10 and an inclination of 1° with respect to the ecliptic.^[1] The first precovery was taken at Goethe Link Observatory in 1954, extending the asteroid's observation arc by 15 years prior to its discovery.^[8]

Physical characteristics

A rotational lightcurve was obtained from photometric observations made by Italian astronomers Roberto Crippa and Federico Manzini in February 2006. The fragmentary lightcurve gave a rotation period of 9.4±0.2 hours with a low brightness variation of 0.07 magnitude (U=1+).^[6]

According to the space-based surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer, the asteroid measures 18.0 and 19.2 kilometers in diameter with a corresponding albedo of 0.099 of 0.074, respectively.^[4]^[5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08 and calculates a diameter of 18.7 kilometers with an absolute magnitude of 12.1.^[3]

Naming

This minor planet was named after the Soviet Artek (Арте́к) camp, the first All-Union Young Pioneer camp on the Crimean peninsula.^[2] The official naming citation was published by the Minor Planet Center on 30 June 1977 (M.P.C. 4190).^[9]

References

^ ^a ^b ^c ^d ^e "JPL Small-Body Database Browser: 1956 Artek (1969 TX1)" (2017-05-04 last obs.). Jet Propulsion Laboratory. Retrieved 2 July 2017.
^ ^a ^b ^c Schmadel, Lutz D. (2007). "(1956) Artek". Dictionary of Minor Planet Names – (1956) Artek. Springer Berlin Heidelberg. p. 157. doi:10.1007/978-3-540-29925-7_1957. ISBN 978-3-540-00238-3.
^ ^a ^b ^c ^d ^e ^f "LCDB Data for (1956) Artek". Asteroid Lightcurve Database (LCDB). Retrieved 18 May 2016.
^ ^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 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8.
^ ^a ^b Behrend, Raoul. "Asteroids and comets rotation curves – (1956) Artek". Geneva Observatory. Retrieved 18 May 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.
^ ^a ^b "1956 Artek (1969 TX1)". Minor Planet Center. Retrieved 18 May 2016.
^ Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

External links

Asteroid Lightcurve Database (LCDB), query form (info Archived 21 July 2011 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
1956 Artek at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1956 Artek at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e Minor planets navigator
1955 McMath 1956 Artek 1957 Angara

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