3040 Kozai
| Discovery [1] | |
|---|---|
| Discovered by | W. Liller |
| Discovery site | Cerro Tololo |
| Discovery date | 23 January 1979 |
| Designations | |
| MPC designation | 3040 Kozai |
Named after |
Yoshihide Kozai (astronomer)[2] |
| 1979 BA | |
| Mars-crosser | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 37.04 yr (13,530 days) |
| Aphelion | 2.2093 AU |
| Perihelion | 1.4721 AU |
| 1.8407 AU | |
| Eccentricity | 0.2002 |
| 2.50 yr (912 days) | |
| 336.60° | |
| Inclination | 46.644° |
| 143.51° | |
| 290.19° | |
| Earth MOID | 0.6392 AU |
| Physical characteristics | |
| Dimensions | 4–11 km (conversion)[3] |
| SMASS = S [1] | |
| 13.8[1] | |
|
| |
3040 Kozai, provisional designation 1979 BA, is a stony asteroid and Mars-crosser on a tilted orbit from the innermost regions of the asteroid belt. It was discovered by American astronomer William Liller at Cerro Tololo Inter-American Observatory in Chile, on 23 January 1979.[4] The asteroid is considered a classical example of an object submitted to the Kozai effect, induced by an outer perturber, which in this case is the gas giant Jupiter.[5]
The S-type asteroid orbits the Sun at a distance of 1.5–2.2 AU once every 2 years and 6 months (912 days). Its orbit shows a notable eccentricity of 0.20. The orbit is also heavily inclined by 47 degrees to the plane of the ecliptic.[1]
Little is known about the asteroids size, composition, albedo and rotation, despite having a well-observed orbit with the lowest possible uncertainty – which is denoted by a condition code of 0 – and an observation arc that spans over a time period of almost 40 years.[1] With an absolute magnitude of 13.8, the asteroid's diameter could be anywhere between 4 and 11 kilometers for an assumed albedo in the range of 0.05–0.25 (see NASA's conversion table).[3] Since the asteroid's spectral type is that of a brighter stony rather than a darker carbonaceous body, its diameter is on the lower end of NASA's generic conversion table, as the larger the body's diameter, the lower its albedo at a constant absolute magnitude.[3]
On 10 January 2044, the asteroid will make a close approach to Mars, passing the Red Planet at a distance of 0.034 AU (5,100,000 km).[1]
The minor planet was named in honour of 20th-century Japanese astronomer Yoshihide Kozai, discoverer of the periodic comet D/Skiff-Kosai and of the Kozai mechanism.[2]
References
- 1 2 3 4 5 6 7 "JPL Small-Body Database Browser: 3040 Kozai (1979 BA)" (2016-02-08 last obs.). Jet Propulsion Laboratory. Retrieved 8 March 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (3040) Kozai. Springer Berlin Heidelberg. p. 250. ISBN 978-3-540-00238-3. Retrieved 8 March 2016.
- 1 2 3 "Absolute Magnitude (H)". NASA/JPL. Retrieved 8 March 2016.
- ↑ "3040 Kozai (1979 BA)". Minor Planet Center. Retrieved 8 March 2016.
- ↑ Fuente, Marcos (June 2014). "Extreme trans-Neptunian objects and the Kozai mechanism: signalling the presence of trans-Plutonian planets". arXiv:1406.0715
.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- 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
- 3040 Kozai at the JPL Small-Body Database
