152 Atala
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| Discovery[1] | |
|---|---|
| Discovered by | P. P. Henry |
| Discovery site | discovery_site |
| Discovery date | 1875 |
| Designations | |
| Named after | Atala |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Aphelion | 3.374 AU |
| Perihelion | 2.918 AU |
| Semi-major axis | 3.146 AU |
| Eccentricity | 0.072 |
| Orbital period | 5.582 years |
| Physical characteristics | |
| Dimensions |
65 ± 8 km[3] 71–122 km[4] |
| Mass | (5.43 ± 1.24) × 1018[5] kg |
| Sidereal rotation period | 5.28-6.25 hours |
| Albedo | 0.054 |
| Spectral type | D[6] |
| Absolute magnitude (H) | 8.33 |
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152 Atala is a large main belt asteroid that was discovered by brothers Paul Henry and Prosper Henry on November 2, 1875, but the discovery was credited to Paul. The asteroid is named for the eponymous heroine of the 1801 novella Atala by François-René de Chateaubriand.[7] It is a type D asteroid, meaning that it is composed of carbon, organic rich silicates and possibly water ice.
An occultation of a star by Atala was observed from Japan on March 11, 1994. Subsequent occultations have been observed as recently as 2006.
Photometric of this asteroid made in 1981 gave a light curve with a period of 5.282 ± 0.004 hours with a brightness variation of 0.50 in magnitude.[8]
References
- ↑ Hardard's Numbered MPs
- ↑ Yeomans, Donald K., "152 Atala", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-30.
- ↑ Ďurech, Josef; Kaasalainen, Mikko; Herald, David; Dunham, David; Timerson, Brad; Hanuš, Josef; Frappa, Eric; Talbot, John; Hayamizu, Tsutomu; Warner, Brian D.; Pilcher, Frederick; Galád, Adrián (2011). "Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes". Icarus 214 (2): 652–670. arXiv:1104.4227. Bibcode:2011Icar..214..652D. doi:10.1016/j.icarus.2011.03.016.
- ↑ Asterodoccultation.com
- ↑ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ SPIFF LCSUMPUB
- ↑ Schmadel, Lutz D.; International Astronomical Union (2003). Dictionary of minor planet names. Berlin; New York: Springer-Verlag. p. 29. ISBN 978-3-540-00238-3. Retrieved 9 September 2011.
- ↑ Schober, H. J. (July 1983), "The large C-type asteroids 146 Lucina and 410 Chloris, and the small S-type asteroids 152 Atala and 631 Philippina - Rotation periods and lightcurves", Astronomy and Astrophysics Supplement Series 53: 71–75, Bibcode:1983A&AS...53...71S.
External links
- Orbital simulation from JPL (Java) / Ephemeris
- Occultation of TYC 5558-01048-1 by (152) Atala on 2006 May 7 UT
- (152) Atala near opposition July 5, 2007 (2.38AU from Earth)
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