1283 Komsomolia

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1283 Komsomolia
Discovery [1]
Discovered by V. Albitzkij
Discovery site Simeiz Obs.
Discovery date 25 September 1925
MPC designation (1283) Komsomolia
Named after
(USSR youth organization)
1925 SC · 1931 VE1
1951 EO2 · 1960 VC
1962 EB · A902 TE
main-belt · (outer)[3]
background [4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 115.00 yr (42,002 days)
Aphelion 3.8872 AU
Perihelion 2.4794 AU
3.1833 AU
Eccentricity 0.2211
5.68 yr (2,075 days)
0° 10m 24.6s / day
Inclination 8.9078°
Physical characteristics
Dimensions 26.78 km (derived)[3]
26.87±1.1 km[5]
29.205±0.338 km[6]
29.569±0.373 km[7]
33.12±0.57 km[8]
36.09±7.15 km[9]
96 h[10]
0.1703 (derived)[3]
M[6] · C (assumed)[3]
10.30[5][6][8] · 10.4[1][3] · 10.61±0.27[11] · 10.70[9]

1283 Komsomolia, provisional designation 1925 SC, is a metallic background asteroid and potentially slow rotator from the outer regions of the asteroid belt, approximately 30 kilometers in diameter. Discovered by Vladimir Albitsky in 1925, it was later named after Komsomol, a political youth organization of the former Soviet Union.


Komsomolia was discovered on 25 September 1925, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula.[12] It was independently discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 10 October 1925.[2] Only the first discoverer is officially recognized.[2] The asteroid was first observed as A902 TE at Heidelberg in October 1902.[12]

Orbit and classification[edit]

Komsomolia is a non-family asteroid from the main belt's background population.[4] It orbits the Sun in the outer main-belt at a distance of 2.5–3.9 AU once every 5 years and 8 months (2,075 days). Its orbit has an eccentricity of 0.22 and an inclination of 9° with respect to the ecliptic.[1] The body's observation arc begins at Heidelberg in October 1902, almost 23 years prior to its official discovery observation.[12]

Physical characteristics[edit]

Komsomolia has been characterized as a metallic M-type asteroid by the Wide-field Infrared Survey Explorer (WISE).[6] The Asteroid Lightcurve Database assumes it to be a carbonaceous C-type asteroid.[3]

Rotation period[edit]

In December 2006, a fragmentary rotational lightcurve of Komsomolia was obtained from photometric observations by French amateur astronomer Pierre Antonini. Lightcurve analysis gave a rotation period of 96 hours with a brightness amplitude of 1.03 magnitude (U=1+).[10]

Diameter and albedo[edit]

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Komsomolia measures between 26.87 and 36.09 kilometers in diameter and its surface has an albedo between 0.071 and 0.1856.[5][6][7][8][9]

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1703 and a diameter of 26.78 kilometers based on an absolute magnitude of 10.4.[3]


This minor planet was named after Komsomol ("All-Union Leninist Young Communist League"), the youth wing of the Communist Party of the Soviet Union (CPSU).[2] The approved naming citation was published by the Minor Planet Center before November 1977 (M.P.C. 838).[13]


  1. ^ a b c d "JPL Small-Body Database Browser: 1283 Komsomolia (1925 SC)" (2017-09-29 last obs.). Jet Propulsion Laboratory. Retrieved 13 October 2017. 
  2. ^ a b c d Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1283) Komsomolia. Springer Berlin Heidelberg. p. 106. ISBN 978-3-540-00238-3. Retrieved 13 October 2017. 
  3. ^ a b c d e f g "LCDB Data for (1283) Komsomolia". Asteroid Lightcurve Database (LCDB). Retrieved 13 October 2017. 
  4. ^ a b "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Retrieved 13 October 2017. 
  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. Bibcode:2004PDSS...12.....T. Retrieved 13 October 2017. 
  6. ^ a b c d e f Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 13 October 2017. 
  7. ^ a b c 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 13 October 2017. 
  8. ^ 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 13 October 2017. 
  9. ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 13 October 2017. 
  10. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1283) Komsomolia". Geneva Observatory. Retrieved 13 October 2017. 
  11. ^ 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 13 October 2017. 
  12. ^ a b c "1283 Komsomolia (1925 SC)". Minor Planet Center. Retrieved 13 October 2017. 
  13. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 13 October 2017. 

External links[edit]