3787 Aivazovskij

3787 Aivazovskij (prov. designation: 1977 RG7) is a stony asteroid of the Itha family, located in the outer region of the asteroid belt. It was discovered by Soviet–Russian astronomer Nikolai Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula, on 11 September 1977.[10] The stony S-type asteroid has a rotation period of 3.0 hours and measures approximately 13 kilometers (8.1 miles) in diameter. It was named after painter Ivan Aivazovsky (1817–1900).[2]

3787 Aivazovskij
Shape model of Aivazovskij from its lightcurve
Discovery [1]
Discovered byN. Chernykh
Discovery siteCrimean Astrophysical Obs.
Discovery date11 September 1977
Designations
(3787) Aivazovskij
Named after
Ivan Aivazovsky (painter)[2]
1977 RG7 · 1931 DM
1967 RO · 1987 UA3
main-belt · (outer) [3]
Itha [4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc86.11 yr (31,452 days)
Aphelion3.2220 AU
Perihelion2.4819 AU
2.8519 AU
Eccentricity0.1298
4.82 yr (1,759 days)
6.3381°
0° 12m 16.56s / day
Inclination12.055°
185.88°
305.66°
Physical characteristics
Mean diameter
12.089±0.121 km[5][6]
14.89 km (calculated)[3]
2.97[7]
0.20 (assumed)[3]
0.333±0.070[5][6]
S [3][8]
11.4[5] · 11.488±0.002 (R)[9] · 11.5[1][3] · 11.55±0.51[8]

    Orbit and classification

    When applying the hierarchical clustering method to its proper orbital elements, Aivazovskij is a member of the Itha family,[4] a very small family of asteroids, named after its parent body 918 Itha.[11]:23 It orbits the Sun in the outer main belt at a distance of 2.5–3.2 AU once every 4 years and 10 months (1,759 days; semi-major axis of 2.85 AU). Its orbit has an eccentricity of 0.13 and an inclination of 12° with respect to the ecliptic.[1] The first precovery was taken at Lowell Observatory in 1931, extending the asteroid's observation arc by 46 years prior to its discovery.[10]

    Naming

    This minor planet was named after Russian painter of seascapes, Ivan Aivazovsky (1817–1900), who lived and worked in the Crimean city of Feodosia. The minor planet 1048 Feodosia is named after this place.[2][12] The official naming citation was published by the Minor Planet Center on 1 September 1993 (M.P.C. 22499).[13]

    Physical characteristics

    The asteroid has been characterized as a stony S-type asteroid by PanSTARRS' photometric survey.[3][8] This concurs with the overall spectral type for the Itha family.[11]:23

    Rotation period

    A rotational lightcurve of Aivazovskij was obtained from photometric observations made in March 2008, at the Universidad de Monterry Observatory, Mexico. It showed a well-defined rotation period of 2.97 hours with a brightness amplitude of 0.18 in magnitude (U=3).[7] Two additional observations gave a period of 2.9532±0.0005 and 2.980807±0.000005 hours, respectively (U=2/n.a.).[9][14]

    Diameter and albedo

    Based on the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measure 12.1 kilometers in diameter and its surface has a high albedo of 0.33,[5][6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20, and calculates a diameter 14.9 kilometers with an absolute magnitude of 11.5.[3]

    References
    1. "JPL Small-Body Database Browser: 3787 Aivazovskij (1977 RG7)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.
    2. Schmadel, Lutz D. (2007). "(3787) Aivazovskij". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 320. doi:10.1007/978-3-540-29925-7_3782. ISBN 978-3-540-00238-3.
    3. "LCDB Data for (3787) Aivazovskij". Asteroid Lightcurve Database (LCDB). Retrieved 3 May 2016.
    4. "Asteroid 3787 Aivazovskij – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
    5. 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. Retrieved 3 May 2016.
    6. 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 5 December 2016.
    7. Sada, Pedro V. (October 2008). "CCD Photometry of Three Short-period Asteroids from the Universidad de Monterry Observatory" (PDF). Minor Planet Bulletin. 35 (4): 161–162. Bibcode:2008MPBu...35..161S. ISSN 1052-8091. Retrieved 19 March 2020.
    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 3 May 2016.
    9. Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 3 May 2016.
    10. "3787 Aivazovskij (1977 RG7)". Minor Planet Center. Retrieved 3 May 2016.
    11. Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). Identification and Dynamical Properties of Asteroid Families. Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
    12. Schmadel, Lutz D. (2003). "(1048) Feodosia". Dictionary of Minor Planet Names – (1048) Feodosia. Springer Berlin Heidelberg. pp. 89–90. doi:10.1007/978-3-540-29925-7_1049. ISBN 978-3-540-29925-7.
    13. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 May 2016.
    14. Hanuš, J.; Ďurech, J.; Oszkiewicz, D. A.; Behrend, R.; Carry, B.; Delbo, M.; et al. (February 2016). "New and updated convex shape models of asteroids based on optical data from a large collaboration network". Astronomy and Astrophysics. 586: A108. arXiv:1510.07422. Bibcode:2016A&A...586A.108H. doi:10.1051/0004-6361/201527441. ISSN 0004-6361.
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