Astronomy:1956 Artek
| Discovery[1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 8 October 1969 |
| Designations | |
| (1956) Artek | |
| Named after | Artek (Арте́к) (Young Pioneer camp)[2] |
| 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) |
| |{{{apsis}}}|helion}} | 3.5304 AU |
| |{{{apsis}}}|helion}} | 2.8760 AU |
| 3.2032 AU | |
| Eccentricity | 0.1022 |
| Orbital period | 5.73 yr (2,094 days) |
| Mean anomaly | 11.877° |
| Mean motion | 0° 10m 18.84s / day |
| Inclination | 1.4928° |
| Longitude of ascending node | 153.36° |
| 346.60° | |
| Physical characteristics | |
| Dimensions | 17.97±0.91 km[4] 18.71 km (calculated)[3] 19.92±3.55 km[5] |
| 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] |
| 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 ({{{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
- ↑ 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 1956 Artek (1969 TX1)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001956. Retrieved 2 July 2017.
- ↑ 2.0 2.1 2.2 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.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (1956) Artek". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1956%7CArtek. Retrieved 18 May 2016.
- ↑ 4.0 4.1 4.2 4.3 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. doi:10.1093/pasj/63.5.1117. Bibcode: 2011PASJ...63.1117U. (online, AcuA catalog p. 153)
- ↑ 5.0 5.1 5.2 5.3 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. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M.
- ↑ 6.0 6.1 Behrend, Raoul. "Asteroids and comets rotation curves – (1956) Artek". Geneva Observatory. http://obswww.unige.ch/~behrend/page4cou.html#001956. 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V.
- ↑ 8.0 8.1 "1956 Artek (1969 TX1)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1956. 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 )
- 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
- 1956 Artek at the JPL Small-Body Database
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