2420_Čiurlionis

2420 Čiurlionis

2420 Čiurlionis

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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]

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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 (U=2/3-).[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. [1]
    "JPL Small-Body Database Browser: 2420 Ciurlionis (1975 TN)" (2017-03-05 last obs.). Jet Propulsion Laboratory. Retrieved 29 June 2017.
  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. [3]
    "LCDB Data for (2420) Čiurlionis". Asteroid Lightcurve Database (LCDB). Retrieved 29 June 2017.
  4. [4]
    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.
  5. [5]
    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.
  6. [6]
    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.
  7. [7]
    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.
  8. [8]
    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.
  9. [9]
    "2420 Ciurlionis (1975 TN)". Minor Planet Center. Retrieved 29 June 2017.
  10. [10]
    "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 June 2017.
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