111 Ate
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| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | August 14, 1870 |
| Designations | |
| 1935 AA, A911 KE | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 427.329 Gm (2.857 AU) |
| Perihelion | 349.027 Gm (2.333 AU) |
| 388.178 Gm (2.595 AU) | |
| Eccentricity | 0.101 |
| 1526.712 d (4.18 a) | |
|
Average orbital speed
|
18.44 km/s |
| 85.294° | |
| Inclination | 4.923° |
| 305.885° | |
| 166.037° | |
| Physical characteristics | |
| Dimensions | 142.85 ± 5.94[2] km |
| Mass | (1.76 ± 0.44) × 1018[2] kg |
|
Mean density
|
1.15 ± 0.32[2] g/cm3 |
| 0.0376 m/s² | |
| 0.0712 km/s | |
| 22.072 ± 0.001[3] h | |
| Temperature | ~173 K |
|
Spectral type
|
C[4] |
| 8.02 | |
111 Ate is a main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on August 14, 1870,[5] and named after Ate, the goddess of mischief and destruction in Greek mythology. In the Tholen classification system, it is categorized as a carbonaceous C-type asteroid, while the Bus asteroid taxonomy system lists it as an Ch asteroid.[4]
Two stellar occultations by Ate were observed in 2000, only two months apart. The occultation of the star HIP 2559 by 111 Ate was used to determine a chord length of 125.6 ± 7.2 km through the asteroid, giving a lower bound on the maximum dimension.[6] During 2000, 111 Ate was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 135 ± 15 km.[7] The estimated size of this asteroid is 143[2] km, making it one of the larger asteroids.
Based upon an irregular light curve that was generated from photometric observations of this asteroid at Pulkovo Observatory, it has a rotation period of 22.072 ± 0.001 hours and varies in brightness by 0.12 ± 0.01 in magnitude.[3]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found. See Table 1.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found. See appendix A.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found. See Table 1.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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