2754 Efimov

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2754 Efimov
Discovery [1]
Discovered by T. Smirnova
Discovery site CrAO (Nauchnyj)
Discovery date 13 August 1966
Designations
MPC designation 2754 Efimov
Named after
Mikhail Efimov[2]
1966 PD · 1933 WF
1966 RB · 1973 YR1
main-belt
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 64.28 yr (23480 days)
Aphelion 2.7466 AU (410.89 Gm)
Perihelion 1.7085 AU (255.59 Gm)
2.2275 AU (333.23 Gm)
Eccentricity 0.23301
3.32 yr (1214.3 d)
282.43°
0° 17m 47.256s / day
Inclination 5.7096°
275.17°
91.156°
Earth MOID 0.717126 AU (107.2805 Gm)
Jupiter MOID 2.74651 AU (410.872 Gm)
Jupiter Tisserand parameter 3.602
Physical characteristics
2.44967 h (0.102070 d)
Sa (SMASSII)
13.6

2754 Efimov, provisionally named 1966 PD, is a main-belt binary asteroid discovered on August 13, 1966 by Tamara Smirnova at Nauchnyj.[1] It is named in memory of the aviator Mikhail Nikiforovich Efimov (1881–1919), who was the first to realize steep turns and dives.[2]

Astronomers discovered a moon around the asteroid in 2006 using lightcurve observations, with a diameter of 1.29 kilometers and an orbital period of 14 hours and 46 minutes.[3]

References[edit]

  1. ^ a b c "JPL Small-Body Database Browser: 2754 Efimov (1966 PD)" (2015-05-19 last obs.). Jet Propulsion Laboratory. Retrieved 15 April 2016. 
  2. ^ a b "Dictionary of Minor Planet Names – (2754) Efimov". Springer Berlin Heidelberg. 2007. p. 226. Retrieved 11 October 2015. 
  3. ^ Johnston, Robert. "(2754) Efimov". johnstonsarchive.net. Retrieved 28 May 2015. 

External links[edit]