Astronomy:152 Atala
.png) A three-dimensional model of 152 Atala based on its light curve. | |
| Discovery[1] | |
|---|---|
| Discovered by | P. P. Henry |
| Discovery date | 2 November 1875 |
| Designations | |
| (152) Atala | |
| Pronunciation | /əˈtɑːlə/ French: [atala] |
| Named after | Atala |
| A875 VB | |
| Minor planet category | Main belt |
| Orbital characteristics[2][3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.69 yr (47735 d) |
| |{{{apsis}}}|helion}} | 3.3855 astronomical unit|AU (506.46 Gm) |
| |{{{apsis}}}|helion}} | 2.8984 AU (433.59 Gm) |
| 3.1420 AU (470.04 Gm) | |
| Eccentricity | 0.077507 |
| Orbital period | 5.57 yr (2034.2 d) |
| Mean anomaly | 52.593° |
| Mean motion | 0° 10m 37.092s / day |
| Inclination | 12.114° |
| Longitude of ascending node | 39.945° |
| 59.807° | |
| Earth MOID | 1.93567 AU (289.572 Gm) |
| Jupiter MOID | 1.85235 AU (277.108 Gm) |
| TJupiter | 3.171 |
| Physical characteristics | |
| Dimensions | 65 ± 8 km[4] 71–122 km[5] |
| Mass | (5.43 ± 1.24) × 1018 kg[6] |
| Rotation period | 6.246 h (0.2603 d) |
| Sidereal rotation period | 5.28-6.25 hours |
| Geometric albedo | 0.054 |
| D[7] | |
| Absolute magnitude (H) | 8.33 |
Atala (minor planet designation: 152 Atala) is a large main belt asteroid that was discovered by brothers Paul Henry and Prosper Henry on 2 November 1875, but the discovery was credited to Paul. It is a type D asteroid, meaning that it is composed of carbon, organic rich silicates and possibly water ice.
The asteroid is named for the eponymous heroine of the 1801 novella Atala by François-René de Chateaubriand.[8] The Henry brothers also named the last of their discoveries, 186 Celuta, after another Chateaubriand heroine.[9] Both Atala and Céluta are American Indian fictional characters.[10]
An occultation of a star by Atala was observed from Japan on 11 March 1994. Subsequent occultations have been observed as recently as 2006.[citation needed]
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.[11]
References
- ↑ Hardard's Numbered MPs
- ↑ "The Asteroid Orbital Elements Database". Lowell Observatory. http://ftp.lowell.edu/pub/elgb/astorb.html.
- ↑ Yeomans, Donald K., "152 Atala", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=152, retrieved 12 May 2016.
- ↑ Ďurech, Josef; Kaasalainen, Mikko; Herald, David; Dunham, David; Timerson, Brad; Hanuš, Josef et al. (2011). "Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes". Icarus 214 (2): 652–670. doi:10.1016/j.icarus.2011.03.016. Bibcode: 2011Icar..214..652D. http://astro.troja.mff.cuni.cz/projects/asteroids3D/download/durech_et_al_2011_occ_paper.pdf. Retrieved 26 January 2012.
- ↑ Asterodoccultation.com
- ↑ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. 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. https://books.google.com/books?id=KWrB1jPCa8AC&pg=PA29.
- ↑ Schmadel, Lutz D.; International Astronomical Union (2012). Dictionary of minor planet names (6th ed.). Berlin; New York: Springer-Verlag. p. 29. ISBN 9783642297182. https://books.google.com/books?id=aeAg1X7afOoC&q&pg=PA29. Retrieved 4 April 2014.
- ↑ Chateaubriand, François-René (1801). Atala.; Chateaubriand, François-René (1802). René.
- ↑ 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
- Occultation of TYC 5558-01048-1 by (152) Atala on 2006 May 7 UT
- (152) Atala near opposition 5 July 2007 (2.38AU from Earth)
- 152 Atala at AstDyS-2, Asteroids—Dynamic Site
- 152 Atala at the JPL Small-Body Database
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