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2420 Čiurlionis

Main-belt asteroid

Field	Value
minorplanet	yes
name	2420 Čiurlionis
background	#D6D6D6
discovery_ref
discovered	3 October 1975
discoverer	N. Chernykh
discovery_site	Crimean Astrophysical Obs.
mpc_name	(2420) Čiurlionis
alt_names	1975 TN1979 QF
named_after	Mikalojus Čiurlionis
(painter and composer)
mp_category	main-beltEunomia
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	41.42 yr (15,129 days)
aphelion	2.9008 AU
perihelion	2.2190 AU
semimajor	2.5599 AU
eccentricity	0.1332
period	4.10 yr (1,496 days)
mean_anomaly	56.325°
mean_motion	/ day
inclination	14.611°
asc_node	205.64°
arg_peri	197.83°
dimensions	km
10.06 km (calculated)
rotation	h
h
albedo	0.21 (assumed)

spectral_type	S
abs_magnitude	12.212.3

(painter and composer) 10.06 km (calculated) h

2420 Čiurlionis, provisionally designated , 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.

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.

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 ().

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. 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.

Naming

This minor planet was named after Lithuanian Art Nouveau painter and composer Mikalojus Konstantinas Čiurlionis (1875–1911). The approved naming citation was published by the Minor Planet Center on 17 February 1984 (M.P.C. 8542).

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

eunomia-asteroids discoveries-by-nikolai-chernykh named-minor-planets astronomical-objects-discovered-in-1975

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