1644 Rafita
| Discovery [1] | |
|---|---|
| Discovered by | R. Carrasco |
| Discovery site | Madrid Observatory |
| Discovery date | 16 December 1935 |
| Designations | |
| MPC designation | 1644 Rafita |
|
Named after
|
Rafael Carrasco (discoverer's family)[2] |
| 1935 YA · 1939 XA 1941 JB · 1949 JC 1951 VF · 1955 TS 1957 GD · 1959 UD A906 RB · A916 BA |
|
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.92 yr (39,783 days) |
| Aphelion | 2.9441 AU |
| Perihelion | 2.1532 AU |
| 2.5487 AU | |
| Eccentricity | 0.1551 |
| 4.07 yr (1,486 days) | |
| 180.09° | |
| Inclination | 7.0195° |
| 270.91° | |
| 196.97° | |
| Physical characteristics | |
| Dimensions | 17.69±1.08 km[4] 15.405±0.072 km[5] 15.482 km[6] 15.48 km (taken)[3] |
| 6.80 h[7] 5.100±0.002 h[8] |
|
| 0.106±0.014[4] 0.1403±0.0148[5] 0.1329[6] |
|
| B–V = 0.867 U–B = 0.404 Tholen = S S [3] |
|
| 11.82 | |
1644 Rafita, provisional designation 1935 YA, is a stony asteroid from the inner regions of the asteroid belt, about 16 kilometers in diameter. It was discovered by Spanish astronomer Rafael Carrasco at the Royal Observatorio Astronómico de Madrid, Spain on 16 December 1935.[9]
The asteroid orbits the Sun at a distance of 2.2–2.9 AU once every 4 years and 1 month (1,486 days). Its orbit shows an eccentricity of 0.16 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 6.8 hours.[7] Based on results from the Akari, WISE and NEOWISE mission, the S-type asteroid has a relatively low albedo of 0.10–0.15.[4][5][6]
The minor planet was named by the discoverer in honor of his late son, Rafael Carrasco.[2]
References
- ↑ 1.0 1.1 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 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.
- ↑ 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
- 1644 Rafita at the JPL Small-Body Database
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