2072 Kosmodemyanskaya

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2072 Kosmodemyanskaya
Discovery  [1]
Discovered by T. Smirnova
Discovery site Crimean Astrophysical Obs.
Discovery date31 August 1973
Designations
(2072) Kosmodemyanskaya
Named after
L. Kosmodemyanskaya
(mother of Zoya and Aleksandr) [2]
1973 QE2 ·1944 BD
1958 XY ·1962 XL1
1975 EL
main-belt  ·(inner)  [3]
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 61.13 yr (22,326 days)
Aphelion 2.8512 AU
Perihelion 2.0508 AU
2.4510 AU
Eccentricity 0.1633
3.84 yr (1,402 days)
113.25°
0° 15m 24.84s / day
Inclination 4.7419°
26.200°
38.426°
Physical characteristics
Dimensions4.843±0.215 km [4] [5]
8.93 km (calculated) [3]
4.4 h [6]
10±1 h [7]
0.20 (assumed) [3]
0.522±0.098 [5]
0.6805±0.1904 [4]
S   [3]
12.61 [1] [3] [4]  ·13.03±0.28 [8]

    2072 Kosmodemyanskaya, provisional designation 1973 QE2, is a stony asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter.

    Contents

    The asteroid was discovered on 31 August 1973, by Russian astronomer Tamara Smirnova at Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula. [9] It was named after Lyubov Kosmodemyanskaya, mother of Soviet heroes Zoya and Aleksandr. [2]

    Classification and orbit

    Kosmodemyanskaya orbits the Sun in the inner main-belt at a distance of 2.1–2.9  AU once every 3 years and 10 months (1,402 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic. [1]

    The asteroid was first identified as 1944 BD at Turku Observatory in 1944. Its first used observation is a precovery taken at Palomar Observatory in 1956, extending the body's observation arc by 17 years prior to the official discovery observation at Nauchnyj. [9]

    Physical characteristics

    Kosmodemyanskaya has been characterized as a stony S-type asteroid. [3]

    Lightcurves

    The first rotational lightcurve was obtained by American astronomer Richard P. Binzel during a photometric survey of small main-belt asteroids in the 1980s. It showed a rotation period of 4.4 hours with a brightness variation of 0.09 magnitude ( U=2 ). [6] In November 2004, another lightcurve of Kosmodemyanskaya was obtained by French amateur astronomer Laurent Bernasconi. Lightcurve analysis gave a period of 10 hours with an amplitude of 0.05 magnitude ( U=2- ). [7]

    Diameter and albedo

    According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Kosmodemyanskaya measures 4.843 kilometers in diameter and its surface has an exceptionally high albedo of 0.522, [4] [5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.93 kilometers with an absolute magnitude of 12.61. [3]

    Naming

    This minor planet was named in memory of social worker Lyubov Kosmodemyanskaya (1900–1978), mother of Soviet heroes Zoya Kosmodemyanskaya and Aleksandr Kosmodemyansky. The minor planets 1793 Zoya and 1977 Shura, pet name for Aleksandr, were named after the two. [2] The official naming citation was published by the Minor Planet Center on 1 April 1980 ( M.P.C. 5282). [10]

    Related Research Articles

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    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 2072 Kosmodemyanskaya (1973 QE2)" (2017-05-01 last obs.). Jet Propulsion Laboratory . Retrieved 10 June 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(2072) Kosmodemyanskaya". Dictionary of Minor Planet Names – (2072) Kosmodemyanskaya. Springer Berlin Heidelberg. p. 168. doi:10.1007/978-3-540-29925-7_2073. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 7 "LCDB Data for (2072) Kosmodemyanskaya". Asteroid Lightcurve Database (LCDB). Retrieved 7 December 2016.
    4. 1 2 3 4 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.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 7 December 2016.
    6. 1 2 Binzel, R. P.; Mulholland, J. D. (December 1983). "A photoelectric lightcurve survey of small main belt asteroids". Icarus. 56 (3): 519–533. Bibcode:1983Icar...56..519B. doi:10.1016/0019-1035(83)90170-7. ISSN   0019-1035 . Retrieved 7 December 2016.
    7. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (2072) Kosmodemyanskaya". Geneva Observatory . Retrieved 7 December 2016.
    8. ↑ 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 7 December 2016.
    9. 1 2 "2072 Kosmodemyanskaya (1973 QE2)". Minor Planet Center. Retrieved 7 December 2016.
    10. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 7 December 2016.
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