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]
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]
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]
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]
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]
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]
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]
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]
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]
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]