(2553) Viljev

Asteroid (2553) Viljev
Properties of the orbit (Animation)
Orbit type	Outer main belt
Large semi-axis	3.0864 ±0.0002 AE
Eccentricity	0,0468 ±0,0004
Perihelion – Aphelion	2,942 ±0,0011 AE – 3,2307 ±0,0002 AE
Inclination of the orbital plane	5,249 ±0,0409°
Length of the ascending node	120,0051 ±0,4272°
Argument of periapsis	249,7657 ±0,6115°
Time of the perihelion passage	29.August 2019
Sidereal period	5,42 a ±0,17 d
Physical properties
Average diameter	14.021 ±0.212 km
Albedo	0,271 ±0,059
Absolute brightness	11,4 mag
History
Explorer	Soviet Union 1955 Nikolai Stepanovich Chernykh
Discovery date	29. March 1979
Other designation	1979 FS2; 1940 CK; 1954 UA1; 1956 AU; 1968 HT; 1978 EV1; A899 PG
Source: Unless individually stated otherwise, data are from JPL Small-Body Database Browser. Asteroid family membership is automatically determined from the AstDyS-2 database. Please also see the note on asteroid articles.

(2553) Viljev(1979 FS2; 1940 CK; 1954 UA1; 1956 AU; 1968 HT; 1978 EV1; A899 PG) is an approximately 14-kilometer asteroid of the outer main belt discovered on March 29, 1979, by Russian (then Soviet Union) astronomer Nikolai Stepanovich Chernykh at the Crimean Observatory (Nautschnyj branch) on the Crimean Peninsula (IAU code 095).

Designation

(2553) Viljev was named after the astronomer Mikhail Anatolyevich Viljev (1893-1910), who conducted theoretical studies on celestial mechanics.^[1]

See also

• List of asteroids, number 2501 to 3000

Web links

• (2553) Viljev in the database of the “Asteroids – Dynamic Site” (AstDyS-2, English).
• (2553) Viljev in the Jet Propulsion Laboratory Small-Body Database.Template:JPL Small-Body Database Browser/Maintenance/Old

Individual references

1. ↑ Lutz D. Schmadel: Dictionary of Minor Planet Names. Fifth Revised and Enlarged Edition. Ed.: Lutz D. Schmadel. 5. Edition. Springer Verlag, Berlin, Heidelberg 2003, ISBN 978-3-540-29925-7, p. 186 (English, 992 pp., link.springer .com [ONLINE; retrieved 21 August 2019] Original title: Dictionary of Minor Planet Names. First edition: Springer Verlag, Berlin, Heidelberg 1992): ‘1979 FS2. Discovered 1979 Mar. 29 by N. S. Chernykh at Nauchnyj.”