| 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 | |
| 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) |
| Aphelion | 2.9008 AU |
| Perihelion | 2.2190 AU |
| 2.5599 AU | |
| Eccentricity | 0.1332 |
| 4.10 yr (1,496 days) | |
| 56.325° | |
| 0° 14m 26.16s / day | |
| Inclination | 14.611° |
| 205.64° | |
| 197.83° | |
| Physical characteristics | |
| Dimensions | 8.444±0.198 km[4][5] 10.06 km (calculated)[3] |
| 12.84 h[6] 15.760±0.002 h[7] | |
| 0.21 (assumed)[3] 0.327±0.086[4][5] | |
| S [3] | |
| 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[edit]
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[edit]
Lightcurves[edit]
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 (U=2/3-).[6][7]
Diameter and albedo[edit]
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[edit]
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[edit]
- ^ a b c d "JPL Small-Body Database Browser: 2420 Ciurlionis (1975 TN)" (2017-03-05 last obs.). Jet Propulsion Laboratory. Retrieved 29 June 2017.
- ^ a b c 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.
- ^ a b c d e f "LCDB Data for (2420) Čiurlionis". Asteroid Lightcurve Database (LCDB). Retrieved 29 June 2017.
- ^ a b c d 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. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
- ^ a b c 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. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 29 June 2017.
- ^ a b Durkee, Russell I.; Syring, Connor W. (April 2013). "Lightcurve of 2420 Ciurlionis". The Minor Planet Bulletin. 40 (2): 88. Bibcode:2013MPBu...40...88D. ISSN 1052-8091. Retrieved 29 June 2017.
- ^ a b Foylan, Mike; Durkee, Russell I. (April 2017). "A Revised Rotation Period for Minor Planet 2420 Ciurlionis". The Minor Planet Bulletin. 44 (2): 91–92. Bibcode:2017MPBu...44...91F. ISSN 1052-8091. 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. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 29 June 2017.
- ^ "2420 Ciurlionis (1975 TN)". Minor Planet Center. Retrieved 29 June 2017.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 June 2017.
External links[edit]
- Asteroid Lightcurve Database (LCDB), query form (info Archived 2017-12-16 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
- 2420 Čiurlionis at the JPL Small-Body Database
