astro.wikisort.org - Asteroid

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]

2420 Čiurlionis

Discovery [1]
Discovered by	N. Chernykh
Discovery site	Crimean Astrophysical Obs.
Discovery date	3 October 1975
Designations
MPC designation	(2420) Čiurlionis
Named after	Mikalojus Čiurlionis (painter and composer)[2]
Alternative designations	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)
Aphelion	2.9008 AU
Perihelion	2.2190 AU
Semi-major axis	2.5599 AU
Eccentricity	0.1332
Orbital period (sidereal)	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°
Argument of perihelion	197.83°
Physical characteristics
Dimensions	8.444±0.198 km[4][5] 10.06 km (calculated)[3]
Synodic rotation period	12.84 h[6] 15.760±0.002 h[7]
Geometric albedo	0.21 (assumed)[3] 0.327±0.086[4][5]
Spectral type	S [3]
Absolute magnitude (H)	12.2[4] · 12.28±0.28[8] · 12.3[1][3]

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

External links

• 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
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

---

[de] (2420) Čiurlionis

(2420) Čiurlionis ist ein Asteroid des Hauptgürtels, der am 3. Oktober 1975 vom russischen Astronomen Nikolai Stepanowitsch Tschernych am Krim-Observatorium in Nautschnyj (IAU-Code 095) entdeckt wurde.

---

- [en] 2420 Čiurlionis

---

---