152 Atala

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152 Atala
152Atala (Lightcurve Inversion).png
A three-dimensional model of 152 Atala based on its light curve.
Discovery[1]
Discovered by P. P. Henry
Discovery site discovery_site
Discovery date 2 November 1875
Designations
Named after
Atala
Main belt
Orbital characteristics[2][3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 130.69 yr (47735 d)
Aphelion 3.3855 AU (506.46 Gm)
Perihelion 2.8984 AU (433.59 Gm)
3.1420 AU (470.04 Gm)
Eccentricity 0.077507
5.57 yr (2034.2 d)
52.593°
0° 10m 37.092s / day
Inclination 12.114°
39.945°
59.807°
Earth MOID 1.93567 AU (289.572 Gm)
Jupiter MOID 1.85235 AU (277.108 Gm)
Jupiter Tisserand parameter 3.171
Physical characteristics
Dimensions 65 ± 8 km[4]
71–122 km[5]
Mass (5.43 ± 1.24) × 1018 kg[6]
6.246 h (0.2603 d)
5.28-6.25 hours
0.054
D[7]
8.33

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. 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 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.[11]

References[edit]

  1. ^ Hardard's Numbered MPs
  2. ^ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory. 
  3. ^ Yeomans, Donald K., "152 Atala", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016. 
  4. ^ 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" (PDF). Icarus. 214 (2): 652–670. arXiv:1104.4227free to read. Bibcode:2011Icar..214..652D. doi:10.1016/j.icarus.2011.03.016. 
  5. ^ Asterodoccultation.com
  6. ^ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336free to read, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  7. ^ SPIFF LCSUMPUB
  8. ^ 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. 
  9. ^ Schmadel, Lutz D.; International Astronomical Union (2012). Dictionary of minor planet names (6th ed.). Berlin; New York: Springer-Verlag. p. 29. ISBN 9783642297182. Retrieved 4 April 2014. 
  10. ^ Chateaubriand, François-René (1801). Atala. ; Chateaubriand, François-René (1802). René. 
  11. ^ 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[edit]