1390 Abastumani

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1390 Abastumani
Discovery [1]
Discovered by P. Shajn
Discovery site Simeiz Obs.
Discovery date 3 October 1935
MPC designation (1390) Abastumani
Named after
(Georgian town)[2]
1935 TA · 1926 GN
1929 UL · A907 GN
A916 VA
main-belt · (outer)[1]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 86.80 yr (31,705 days)
Aphelion 3.5547 AU
Perihelion 3.3166 AU
3.4356 AU
Eccentricity 0.0347
6.37 yr (2,326 days)
0° 9m 17.28s / day
Inclination 19.932°
Physical characteristics
Dimensions 95.849±2.283[3]
98.30±2.03 km[4]
101.58±2.3 km (IRAS:12)[5]
107.827±6.977 km[6]
17.100±0.005 h[7]
0.0298±0.001 (IRAS:12)[5]
B–V = 0.685
U–B = 0.189
Tholen = P [1] · P[8]

1390 Abastumani, provisional designation 1935 TA, is a large, rare-type asteroid from the outer region of the asteroid belt, approximately 101 kilometers in diameter. It was named for the Georgian town of Abastumani.[2]


It was discovered on 3 October 1935, by Soviet–Russian astronomer Pelageya Shajn at Simeiz Observatory on the Crimean peninsula.[10] On the same night, the asteroid was independently discovered by South African astronomer Cyril Jackson at Johannesburg Observatory.[2] It was one of the last large-sized bodies discovered in the outer belt (also see 1269 Rollandia and 1902 Shaposhnikov, discovered in 1930 and 1972, respectively).

Orbit and classification[edit]

The dark and reddish asteroid is classified as a rare P-type asteroid in the Tholen taxonomic scheme, of which only a few dozens bodies are currently known.[11] It orbits the Sun at a distance of 3.3–3.6 AU once every 6 years and 4 months (2,326 days). Its orbit has an eccentricity of 0.03 and an inclination of 20° with respect to the ecliptic.[1] The first used precovery was taken at Lowell Observatory in 1929, extending the asteroid's observation arc by 6 years prior to its discovery.[10]

Physical characteristics[edit]

In April 2002, a rotational lightcurve for this asteroid was obtained from photometric observation by astronomer John Gross at the U.S. Sonoran Skies Observatory (G94) in Benson, Arizona. It gave a rotation period of 17.100±0.005 hours with a brightness variation of 0.15 in magnitude (U=2).[7]

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 98.3 and 107.8 kilometers in diameter, and its surface has a very low albedo between 0.026 and 0.033.[4][5][6] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, i.e. a diameter of 101.5 kilometers and an albedo of 0.0298.[8]


This minor planet is named after the spa town of Abastumani located in the Caucasus Mountains of Georgia. It is now the place where the Abastuman Astronomical Observatory (code 119) is situated (M.P.C. 838).[2]


  1. ^ a b c d e f "JPL Small-Body Database Browser: 1390 Abastumani (1935 TA)" (2016-08-15 last obs.). Jet Propulsion Laboratory. Retrieved 1 December 2016. 
  2. ^ a b c d Schmadel, Lutz D. (2007). "(1390) Abastumani". Dictionary of Minor Planet Names – (1390) Abastumani. Springer Berlin Heidelberg. p. 112. doi:10.1007/978-3-540-29925-7_1391. ISBN 978-3-540-00238-3. Retrieved 3 August 2016. 
  3. ^ a b Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645Freely accessible. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 1 December 2016. 
  4. ^ a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 3 August 2016. 
  5. ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12. Bibcode:2004PDSS...12.....T. Retrieved 3 August 2016. 
  6. ^ 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 3 August 2016. 
  7. ^ a b Gross, John (September 2003). "Sonoran Skies Observatory lightcurve results for asteroids 1054, 1390, 1813 1838, 2988, 3167, 4448, and 5262". The Minor Planet Bulletin. 30 (3): 44–46. Bibcode:2003MPBu...30...44G. ISSN 1052-8091. Retrieved 3 January 2016. 
  8. ^ a b c "LCDB Data for (1390) Abastumani". Asteroid Lightcurve Database (LCDB). Retrieved 3 August 2016. 
  9. ^ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 3 August 2016. 
  10. ^ a b "1390 Abastumani (1935 TA)". Minor Planet Center. Retrieved 3 August 2016. 
  11. ^ "JPL Small-Body Database Search Engine: spec. type = P (Tholen)". JPL Solar System Dynamics. Retrieved 3 January 2016. 

External links[edit]