The rare O-type asteroids have spectra similar to the unusual asteroid 3628 Boznemcová, which is the best asteroid match to the spectra of L6 and LL6 ordinary chondrite meteorites. Their spectra have a deep absorption feature longward of 0.75 μm.
List
See also: Category:O-type asteroids (SMASS)Seven asteroids have been classified as O-type by the second Small Main-Belt Asteroid Spectroscopic Survey (SMASSII) and none by Tholen's Eight-Color Asteroid Survey. With the exception of main-belt asteroid 3628 Božněmcová, all other bodies are near-Earth asteroids from the Apollo, Aten or Amor group:
| Designation | Class | Diam. | Refs |
|---|---|---|---|
| 3628 Božněmcová | main-belt | 6.914 km | MPC · JPL |
| 4034 Vishnu | Apollo | 0.42 km | MPC · JPL |
| 4341 Poseidon | Apollo | 2 km | MPC · JPL |
| 5143 Heracles | Apollo | 4.843 km | MPC · JPL |
| (8201) 1994 AH2 | Apollo | 1.859 km | MPC · JPL |
| (162385) 2000 BM19 | Aten | 0.57 km | MPC · JPL |
| 1997 RT | Amor | 0.3 km | MPC · JPL |
| Diameter: averaged estimates only; may change over time | |||
See also
References
- S. J. Bus and R. P. Binzel, Phase II of the Small Main-belt Asteroid Spectroscopy Survey: A feature-based taxonomy, Icarus, Vol. 158, pp. 146 (2002).
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