Leontina
| Discovery | |
|---|---|
| Discovered by | J. Rheden |
| Discovery site | Vienna Obs. |
| Discovery date | 1 October 1916 |
| Designations | |
| MPC designation | (844) Leontina |
|
Named after
|
Lienz (discoverer's home town) |
| 1916 AP · 1935 BN 1953 FL1 · A902 EC |
|
| main-belt · (outer) | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 114.11 yr (41680 d) |
| Aphelion | 3.4273 AU (512.72 Gm) |
| Perihelion | 2.9894 AU (447.21 Gm) |
| 3.2084 AU (479.97 Gm) | |
| Eccentricity | 0.068232 |
| 5.75 yr (2099.0 d) | |
| 213.70° | |
| 0° 10m 17.436s / day | |
| Inclination | 8.7853° |
| 348.76° | |
| 351.03° | |
| Physical characteristics | |
| Dimensions |
39.90±0.79 km 49.558±0.785 km 28.85±1.47 km 35.73 km (calculated) |
|
6.7859±0.0002 h 6.784±0.001 h 6.7965±0.0028 h 6.7859 h (0.28275 d) |
|
|
0.200±0.010 0.1255±0.0132 0.307±0.036 |
|
| SMASS = X · S | |
| 9.6 | |
844 Leontina, provisional designation 1916 AP, is a stony asteroid from the outer region of the asteroid belt, about 36 kilometers in diameter. It was discovered on 1 October 1916, by Austrian astronomer Joseph Rheden at Vienna Observatory, Austria.
Leontina is an X-type asteroid in the SMASS classification. It orbits the Sun at a distance of 3.0–3.4 AU once every 5 years and 9 months (2,097 days). Its orbit is tilted by 9 degrees to the plane of the ecliptic and shows an eccentricity of 0.07.
Multiple lightcurve analysis rendered a well-defined, concurring rotation period of 6.79 hours. According to the surveys carried out by the Japanese Akari satellite and the U.S. Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, measurements of the body's brightness gave a divergent albedo of 0.13, 0.20 and 0.31, respectively. As a result, the asteroid's estimated diameter strongly varies between 28 and 40 kilometers. The Collaborative Asteroid Lightcurve Link (CALL) considers Akari's albedo-figure of 0.20 the most accurate one and consequently assumes the otherwise classified X-type body to be of a stony surface composition with a calculated diameter of 36 kilometers.
This minor planet was named by the discoverer for his home town Lienz in East Tyrol, Austria.
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Wikipedia