2099 Öpik
| Discovery U–B = 0.350[1] | |
|---|---|
| 15.18[1][4] · 15.22[5] | |
2099 Öpik, provisional designation 1977 VB, is a dark and eccentric
Mars-crosser from the inner regions of the asteroid belt
, approximately 5.1 kilometers in diameter.
The asteroid was discovered on 8 November 1977, by American astronomer
Eleanor Helin at the Palomar Observatory in California, and named after Estonian astronomer Ernst Öpik.[3]
Orbit and classification
Öpik orbits the Sun in the inner main-belt at a distance of 1.5–3.1 AU once every 3 years and 6 months (1,277 days). Its orbit has an eccentricity of 0.36 and an inclination of 27° with respect to the ecliptic.[1] The first used precovery was taken at the discovering observatory in 1970, extending the asteroid's observation arc by 7 years prior to its discovery.[3]
Physical characteristics
Originally, the asteroid's
albedo (below).[1]
Diameter and albedo
According to the survey carried out by NASA's
albedo of 0.05.[5] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 5.12 kilometers with an absolute magnitude of 15.18.[4]
Rotation period
In 2005, a photometric
U=2).[7]
Naming
This
M.P.C. 4548).[8]
References
- ^ a b c d e f g h i j "JPL Small-Body Database Browser: 2099 Opik (1977 VB)" (2017-03-05 last obs.). Jet Propulsion Laboratory. Retrieved 11 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c "2099 Opik (1977 VB)". Minor Planet Center. Retrieved 7 December 2016.
- ^ a b c d e "LCDB Data for (2099) Öpik". Asteroid Lightcurve Database (LCDB). Retrieved 7 December 2016.
- ^ .
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2099) Öpik". Geneva Observatory. Retrieved 7 December 2016.
- ^ Bibcode:2000MPBu...27...46G. Retrieved 27 April 2016.
- ISBN 978-3-642-01964-7.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 2099 Öpik at AstDyS-2, Asteroids—Dynamic Site
- 2099 Öpik at the JPL Small-Body Database
