23436 Alekfursenko

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23436 Alekfursenko
Discovery [1]
Discovered by L. V. Zhuravleva
Discovery site Crimean Astrophysical Obs.
Discovery date 21 October 1982
MPC designation (23436) Alekfursenko
Named after
Aleksandr Fursenko
(Russian historian)[2]
1982 UF8 · 1982 VU6
1982 VZ10 · 1987 QP2
1999 XD167
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 34.33 yr (12,538 days)
Aphelion 3.7757 AU
Perihelion 2.5362 AU
3.1560 AU
Eccentricity 0.1964
5.61 yr (2,048 days)
0° 10m 32.88s / day
Inclination 3.7700°
TJupiter 3.1730
Physical characteristics
Dimensions 7.96 km (calculated)[3]
8.434±0.130 km[5][6]
3.6277±0.0004 h[7]
0.057 (assumed)[3]
C (assumed)[3]
13.8[1] · 13.96±0.08[8] · 13.7[5] · 13.774±0.002 (R)[7] · 14.22[3]

23436 Alekfursenko, provisional designation 1982 UF8, is a carbonaceous Hygiean asteroid from the outer region of the asteroid belt, approximately 8 kilometers (5.0 miles) in diameter. It was discovered on 21 October 1982, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula.[9] It was named after Russian historian Aleksandr Fursenko.[2]

Orbit and classification[edit]

Alekfursenko is a member of the Hygiea family (601),[4] a very large family of carbonaceous outer-belt asteroids, named after the fourth-largest asteroid, 10 Hygiea.[10] It orbits the Sun in the outer main-belt at a distance of 2.5–3.8 AU once every 5 years and 7 months (2,048 days). Its orbit has an eccentricity of 0.20 and an inclination of 4° with respect to the ecliptic.[1] The asteroid's observation arc begins with its discovery observation in 1982, as neither precoveries nor prior identifications were obtained.[9]

Physical characteristics[edit]

Rotation period[edit]

In November 2010, a rotational lightcurve of Alekfursenko was obtained from photometric observations made by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 3.6277 hours with a brightness variation of 0.42 magnitude (U=2).[7]

Diameter and albedo[edit]

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Alekfursenko measures 8.4 kilometers in diameter and its surface has an albedo of 0.08,[5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 8.0 kilometers with an absolute magnitude of 14.22.[3]


This minor planet was named in honour of Russian historian Aleksandr Aleksandrovich Fursenko (1927–2008), expert in topics such as international relations, U.S. history, and Russian foreign economic policy. He was also a member of the Russian Academy of Sciences.[2] The approved naming citation was published by the Minor Planet Center on 24 November 2007 (M.P.C. 61268).[11]


  1. ^ a b c d "JPL Small-Body Database Browser: 23436 Alekfursenko (1982 UF8)" (2017-02-17 last obs.). Jet Propulsion Laboratory. Retrieved 27 June 2017. 
  2. ^ a b c Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (23436) Alekfursenko. Springer Berlin Heidelberg. p. 1067. ISBN 978-3-540-00238-3. Retrieved 8 May 2016. 
  3. ^ a b c d e f "LCDB Data for (23436) Alekfursenko". Asteroid Lightcurve Database (LCDB). Retrieved 8 May 2016. 
  4. ^ a b "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Retrieved 1 March 2018. 
  5. ^ a b c d 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 8 May 2016. 
  6. ^ a b 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:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 3 December 2016. 
  7. ^ a b c 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 8 May 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 8 May 2016. 
  9. ^ a b "23436 Alekfursenko (1982 UF8)". Minor Planet Center. Retrieved 8 May 2016. 
  10. ^ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families" (PDF). Asteroids IV: 297–321. arXiv:1502.01628Freely accessible. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. Retrieved 1 March 2018. 
  11. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 8 May 2016. 

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