Astronomy:2420 Čiurlionis
| Discovery [1] | |
|---|---|
| Discovered by | N. Chernykh |
| Discovery site | Crimean Astrophysical Obs. |
| Discovery date | 3 October 1975 |
| Designations | |
| (2420) Čiurlionis | |
| Named after | Mikalojus Čiurlionis (painter and composer)[2] |
| 1975 TN · 1979 QF | |
| Minor planet category | main-belt · Eunomia [3] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 41.42 yr (15,129 days) |
| |{{{apsis}}}|helion}} | 2.9008 AU |
| |{{{apsis}}}|helion}} | 2.2190 AU |
| 2.5599 AU | |
| Eccentricity | 0.1332 |
| Orbital period | 4.10 yr (1,496 days) |
| Mean anomaly | 56.325° |
| Mean motion | 0° 14m 26.16s / day |
| Inclination | 14.611° |
| Longitude of ascending node | 205.64° |
| 197.83° | |
| Physical characteristics | |
| Dimensions | 8.444±0.198 km[4][5] 10.06 km (calculated)[3] |
| Rotation period | 12.84 h[6] 15.760±0.002 h[7] |
| Geometric albedo | 0.21 (assumed)[3] 0.327±0.086[4][5] |
| S [3] | |
| Absolute magnitude (H) | 12.2[4] · 12.28±0.28[8] · 12.3[1][3] |
2420 Čiurlionis, provisionally designated 1975 TN, is a stony Eunomian asteroid from the central regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 3 October 1975, by Soviet astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula, and later named after Lithuanian painter and composer Mikalojus Čiurlionis.[2][9]
Orbit and classification
Čiurlionis is a member of the Eunomia family, a large group of S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.2–2.9 AU once every 4 years and 1 month (1,496 days). Its orbit has an eccentricity of 0.13 and an inclination of 15° with respect to the ecliptic.[1]
Physical characteristics
Lightcurves
Two rotational lightcurves of Čiurlionis were obtained from photometric observations. Lightcurve analysis gave a rotation period of 12.84 and 15.760 hours with a brightness amplitude of 0.48 and 0.51 magnitude, respectively ({{{1}}}).[6][7]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Čiurlionis measures 8.444 kilometers in diameter and its surface has an albedo of 0.327.[4][5] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 10.06 kilometers based on an absolute magnitude of 12.3.[3]
Naming
This minor planet was named after Lithuanian Art Nouveau painter and composer Mikalojus Konstantinas Čiurlionis (1875–1911).[2] The approved naming citation was published by the Minor Planet Center on 17 February 1984 (M.P.C. 8542).[10]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 2420 Ciurlionis (1975 TN)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2002420.
- ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(2420) Čiurlionis". Dictionary of Minor Planet Names – (2420) Čiurlionis. Springer Berlin Heidelberg. p. 197. doi:10.1007/978-3-540-29925-7_2421. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (2420) Čiurlionis". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=2420%7CČiurlionis.
- ↑ 4.0 4.1 4.2 4.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M.
- ↑ 5.0 5.1 5.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 29 June 2017.
- ↑ 6.0 6.1 Durkee, Russell I.; Syring, Connor W. (April 2013). "Lightcurve of 2420 Ciurlionis". The Minor Planet Bulletin 40 (2): 88. ISSN 1052-8091. Bibcode: 2013MPBu...40...88D. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013MPBu...40...88D. Retrieved 29 June 2017.
- ↑ 7.0 7.1 Foylan, Mike; Durkee, Russell I. (April 2017). "A Revised Rotation Period for Minor Planet 2420 Ciurlionis". The Minor Planet Bulletin 44 (2): 91–92. ISSN 1052-8091. Bibcode: 2017MPBu...44...91F. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2017MPBu...44...91F. Retrieved 29 June 2017.
- ↑ 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. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 29 June 2017.
- ↑ "2420 Ciurlionis (1975 TN)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=2420.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
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
- 2420 Čiurlionis at the JPL Small-Body Database
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