1027 Aesculapia
| Discovery [1] | |
|---|---|
| Discovered by | G. van Biesbroeck |
| Discovery site | Yerkes Observatory |
| Discovery date | 11 November 1923 |
| Designations | |
| MPC designation | 1027 Aesculapia |
|
Named after
|
Aesculapius (Greek/Roman deity)[2] |
| A923 YO11 · 1942 DH 1977 LP1 · A899 PE A908 AE |
|
| main-belt · Themis [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 107.43 yr (39,238 days) |
| Aphelion | 3.5654 AU |
| Perihelion | 2.7401 AU |
| 3.1527 AU | |
| Eccentricity | 0.1308 |
| 5.60 yr (2,045 days) | |
| 15.944° | |
| Inclination | 1.2538° |
| 29.349° | |
| 132.16° | |
| Physical characteristics | |
| Dimensions | 32.20 km[4] 38.55±0.82 km[5] 34.464±0.335 km[6] 32.10 km (derived)[3] |
| 9.791 h[7] 6.83±0.10 h[8] 10 h[9] 19.5061±0.1501 h[10] |
|
| 0.0981[4] 0.071±0.003[5] 0.0856±0.0056[6] 0.0821 (derived)[3] |
|
| S [3] | |
| 10.8[1] | |
1027 Aesculapia, provisional designation A923 YO11, is a stony asteroid from the outer region of the asteroid belt, about 32 kilometers in diameter. It was discovered by Belgian–American astronomer George Van Biesbroeck at the U.S Yerkes Observatory in Williams Bay, Wisconsin, on 11 November 1923.[11]
The S-type asteroid orbits the Sun at a distance of 2.7–3.6 AU once every 5 years and 7 months (2,045 days). Its orbit shows an eccentricity of 0.13 and is tilted by 1 degree to the plane of the ecliptic. It is a member of the Themis family, a dynamical family of outer-belt asteroids which are known for their nearly coplanar ecliptical orbits. Several observations of the asteroid's rotation period rendered divergent results in the range of 7 to 20 hours,[8][9] with the two most recent 2015-publications giving a period of 9.8 and 19.5 hours, respectively.[7][10] According to the surveys carried out by IRAS, Akari, and WISE/NEOWISE, the body has a albedo between 0.07 and 0.10.[4][5][6]
The minor planet was named for Aesculapius, the Greek and Roman demigod of medicine and healing, son of Apollo and Koronis, after whom the asteroids 158 Koronis and 1862 Apollo and are named, respectively.[2]
References
- ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 5.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 7.0 7.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 9.0 9.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1027 Aesculapia at the JPL Small-Body Database
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