1910 Mikhailov

1910 Mikhailov, provisional designation 1972 TZ1, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 35 kilometers (22 mi) in diameter. Discovered at Nauchnyj in 1972, it was named after Russian astronomer Aleksandr Aleksandrovich Mikhailov. It has a 3:1 ratio of iron to carbon, hence the name. The asteroid is believed to have been expelled from its parent asteroid belt (one of three main asteroid belts in the inner Solar System), and is classified as a metallic asteroid, because its iron is fairly weak.

1910 Mikhailov
Discovery[1]
Discovered byL. Zhuravleva
Discovery siteCrimean Astrophysical Obs.
Discovery date8 October 1972
Designations
(1910) Mikhailov
Named after
Aleksandr Aleksandrovich Mikhailov (astronomer)[2]
1972 TZ1 · 1950 QR
1954 JL · 1959 GP
1959 JK · 1961 TR
1969 DD · A916 FC
main-belt (outer)[3]
Orbital characteristics[4]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc103.39 yr (37,764 d)
Aphelion3.2044 AU
Perihelion2.8828 AU
3.0436 AU
Eccentricity0.0528
5.31 yr (1,939 d)
143.23°
0° 11m 8.16s / day
Inclination10.362°
200.82°
328.04°
Physical characteristics
Mean diameter
31.3 km[5]
37.201±0.080[6]
8.88 h (0.370 d)[4]
0.032±0.007[6]
0.050 [5]
0.057 [3]
C[3]
11.5[1][4]

    Discovery

    Mikhailov was discovered on 8 October 1972, by Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[1]

    Zhuravleva is ranked 61 in Harvard's ranking of those who discovered minor planets. Detween 1972 and 1992, She discovered 200 such bodies, 13 of which were co-discoveries.[7]

    Orbit and classification

    The C-type asteroid is a non-family asteroid that belongs to the background population of the main belt. It orbits the Sun in the outer asteroid belt at a distance of 2.9–3.2 AU once every 5 years and 4 months (1,939 days; semi-major axis of 3.04 AU). Its orbit has an eccentricity of 0.05 and an inclination of 10° with respect to the ecliptic.[4]

    Physical characteristics

    It has a rotation period of 8.88 hours[4] and a low geometric albedo of 0.05.

    Naming

    The asteroid was named in honor of prominent Russian astronomer Aleksandr Aleksandrovich Mikhailov (1888–1983), a gravimetrist and academician, who was vice-president of the International Astronomical Union, director of the Pulkovo Observatory, a member of the Soviet Academy of Sciences and president of its Astronomical Council.[2] The official naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3937).[8]

    References
    1. "1910 Mikhailov (1972 TZ1)". Minor Planet Center. Retrieved 21 October 2019.
    2. Schmadel, Lutz D. (2003). "(1910) Mikhailov". Dictionary of Minor Planet Names – (1910) Mikhailov. Springer Berlin Heidelberg. p. 153. doi:10.1007/978-3-540-29925-7_1911. ISBN 978-3-540-29925-7.
    3. "LCDB Data for (1910) Mikhailov". Asteroid Lightcurve Database (LCDB). Retrieved 21 October 2019.
    4. "JPL Small-Body Database Browser: 1910 Mikhailov (1972 TZ1)" (2019-08-22 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 21 October 2019.
    5. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (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 23 August 2016.
    6. 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 14 June 2017.
    7. "Minor Planet Discoverers (by number of discoveries)". Minor Planet Center. 27 October 2015. Retrieved 23 August 2016.
    8. Schmadel, Lutz D. (2009). "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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