152 Atala
Main-belt asteroid
From Wikipedia, the free encyclopedia
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.
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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 | |
| 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) |
| TJupiter | 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 | |
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]
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