472 Roma
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| Discovery[1] and designation | |
|---|---|
| Discovered by | Luigi Carnera |
| Discovery date | July 11, 1901 |
| Designations | |
| Alternative names | 1901 GP |
| Orbital characteristics[1] | |
| Epoch July 23, 2010 (JD 2455400.5) | |
| Semi-major axis | 2.5432 AU (a) |
| Eccentricity | 0.0948 |
| Orbital period | 4.06 a |
| Inclination | 15.802° |
| Longitude of ascending node | 127.255° |
| Physical characteristics | |
| Dimensions | 47.27 km [1] |
| Sidereal rotation period | 9.8007 ± 0.0009 h[2] |
| Geometric albedo | 0.2138[1] |
| Absolute magnitude (H) | 8.92[1] |
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472 Roma is an asteroid. It was discovered by Luigi Carnera on July 11, 1901. Its provisional name was 1901 GP. This asteroid was named by Antonio Abetti for the city of Rome in Italy, the native country of its discoverer.[3]
At 21:57 UT, on Thursday, July 8, 2010, this 50 km wide asteroid occulted the star Delta Ophiuchi in an event lasting about five seconds. The occultation path crossed central Europe along a band that ran through Stockholm, Copenhagen, Bremen, Nantes and Bilbao. This was the only asteroid occultation event visible to the naked eye during the 21st century.[4]
This is a member of the dynamic Maria family of asteroids that were probably formed as the result of a collisional breakup of a parent body.[5]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Yeomans, Donald K. "JPL Small-Body Database Browser". NASA/JPL. Archived from the original on 1 July 2010. Retrieved 2010-07-06.
- ↑ Sheridan, Edwin E. (2003). "Rotation periods and lightcurve photometry of 322 Phaeo and 472 Roma". The Minor Planet Bulletin (Minor Planets Section of the Association of Lunar and Planetary Observers) 30 (2): 28. Bibcode:2003MPBu...30...28S. ISSN 1052-8091.
- ↑ Schmadel, Lutz D. (2003). Dictionary of minor planet names. Physics and astronomy online library (5th ed.). Springer. p. 52. ISBN 3-540-00238-3.
- ↑ Koschny, Detlef (July 2, 2010). "Watch While an Asteroid Eats a Star". Space Situational Awareness (ESA). Archived from the original on 7 July 2010. Retrieved 2010-07-06.
- ↑ Veeder, G. J. et al. (March 1995), "Eos, Koronis, and Maria family asteroids: Infrared (JHK) photometry", Icarus 114: 186–196, Bibcode:1995Icar..114..186V, doi:10.1006/icar.1995.1053, retrieved 2013-04-06.
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