(2186) Keldysh

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Asteroid
(2186) Keldysh
Properties of the orbit ( animation )
Orbit type Middle main belt
Major semi-axis 2,681  AU
eccentricity 0.103
Perihelion - aphelion 2.403 AU - 2.958 AU
Inclination of the orbit plane 2.371 °
Length of the ascending node 285.376 °
Argument of the periapsis 132.669 °
Time of passage of the perihelion December 25, 2017
Sidereal period 4.39 a
Physical Properties
Medium diameter 12.79 ± 0.114 km
Albedo 0.088 ± 0.005
Rotation period 7.567 h
Absolute brightness 12.6 mag
history
Explorer Lyudmila Ivanovna Chernych
Date of discovery September 27, 1973
Another name 1973 SQ 4 ; 1929 TX; 1966 DD; 1975 EJ 2
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(2186) Keldysh ( 1973 SQ 4 ; 1929 TX ; 1966 DD ; 1975 EJ 2 ) is an asteroid of the central main belt that was discovered by the Russian astronomer Lyudmila Ivanovna Tschernych on September 27, 1973 at the Crimean Observatory near Nautschnyj on the Crimean peninsula ( IAU code 095) was discovered.

designation

(2186) Keldysh was named after the Soviet scientist and mathematician Mstislav Vsevolodowitsch Keldysch (1911–1978), who made important scientific contributions to aerodynamics and space travel and from 1961 to 1975 was President of the Russian Academy of Sciences .

Web links

Individual evidence

  1. ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 178 (English, 992 pages, link.springer.com [ONLINE; accessed October 25, 2017] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named in memory of Academician Mstislav Vsevo -lodovich Keldysh (1911–1978) ”