1283 Komsomolia

1283 Komsomolia (prov. designation: 1925 SC) is a metallic background asteroid and potentially slow rotator from the outer regions of the asteroid belt. Discovered by Vladimir Albitsky in 1925, it was later named after Komsomol, a political youth organization of the former Soviet Union. The M-type asteroid has roughly a rotation period 96 hours of and measures approximately 30 kilometers (19 miles) in diameter.

1283 Komsomolia
Modelled shape of Komsomolia
Discovery [1]
Discovered byV. Albitzkij
Discovery siteSimeiz Obs.
Discovery date25 September 1925
Designations
(1283) Komsomolia
Named after
Komsomol [2]
(USSR youth organization)
1925 SC · 1931 VE1
1951 EO2 · 1960 VC
1962 EB · A902 TE
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc115.00 yr (42,002 days)
Aphelion3.8872 AU
Perihelion2.4794 AU
3.1833 AU
Eccentricity0.2211
5.68 yr (2,075 days)
344.98°
0° 10m 24.6s / day
Inclination8.9078°
157.74°
235.05°
Physical characteristics
Mean diameter
26.78 km (derived)[5]
26.87±1.1 km[6]
29.205±0.338 km[7]
29.569±0.373 km[8]
33.12±0.57 km[9]
36.09±7.15 km[10]
96 h[11]
0.071±0.334[10]
0.123±0.005[9]
0.153±0.037[8]
0.1577±0.0113[7]
0.1703 (derived)[5]
0.1856±0.017[6]
M [7]
10.30[6][7][9] · 10.4[1][5] · 10.61±0.27[12] · 10.70[10]

    Discovery

    Komsomolia was discovered on 25 September 1925, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula.[3] 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.[3]

    Orbit and classification

    Komsomolia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[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.[3]

    Naming

    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 official naming citation was published by the Minor Planet Center in November 1952 (M.P.C. 838).[13]

    Physical characteristics

    Komsomolia has been characterized as a metallic M-type asteroid by the Wide-field Infrared Survey Explorer (WISE).[7] The Asteroid Lightcurve Database assumes it to be a carbonaceous C-type asteroid.[5]

    Rotation period

    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+).[11]

    Diameter and albedo

    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.[6][7][8][9][10] 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.[5]

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    References
    1. "JPL Small-Body Database Browser: 1283 Komsomolia (1925 SC)" (2017-09-29 last obs.). Jet Propulsion Laboratory. Retrieved 13 October 2017.
    2. Schmadel, Lutz D. (2007). "(1283) Komsomolia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 106. doi:10.1007/978-3-540-29925-7_1284. ISBN 978-3-540-00238-3.
    3. "1283 Komsomolia (1925 SC)". Minor Planet Center. Retrieved 13 October 2017.
    4. "Asteroid 1283 Komsomolia – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
    5. "LCDB Data for (1283) Komsomolia". Asteroid Lightcurve Database (LCDB). Retrieved 13 October 2017.
    6. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 17 October 2019.
    7. 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:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
    8. 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:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 13 October 2017.
    9. 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 June 2018. (online, AcuA catalog p. 153)
    10. 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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 13 October 2017.
    11. Behrend, Raoul. "Asteroids and comets rotation curves – (1283) Komsomolia". Geneva Observatory. Retrieved 13 October 2017.
    12. 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:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 13 October 2017.
    13. Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.
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