(2099) Öpik

Asteroid (2099) Öpik
Properties of the orbit ( animation )
Orbit type	Inner main belt
Major semi-axis	2.303  AU
eccentricity	0.362
Perihelion - aphelion	1.469 AU - 3.137 AU
Inclination of the orbit plane	26.963 °
Length of the ascending node	218.851 °
Argument of the periapsis	159.120 °
Time of passage of the perihelion	March 25, 2016
Sidereal period	3.5 a
Physical Properties
Rotation period	6.4430 h
Absolute brightness	15.18 mag
Spectral class	SMASSII: Ch Tholen: S
history
Explorer	Eleanor Helin
Date of discovery	November 8, 1977
Another name	1977 VB; 1977 UL 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.

(2099) Öpik ( 1977 VB ; 1977 UL ₂ ) is an asteroid of the inner main belt , which was discovered on November 8, 1977 by Eleanor Helin at the Palomar Observatory .

designation

The asteroid was named after the Estonian astronomer Ernst J. Öpik (1895–1985) on the occasion of his 85th birthday. He was active in all areas of astronomy for over 60 years, especially with research on small bodies of the solar system.

See also

• List of asteroids

Web links

• Asteroid Öpik: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
• (2099) Öpik in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).

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. 170 (English, 992 pp., Link.springer.com [ONLINE; accessed on September 5, 2016] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named in honor of Ernst J. Opik ”