265 Anna
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A three-dimensional model of 265 Anna based on its light curve.
|
|
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 25 February 1887 |
| Designations | |
| MPC designation | (265) Anna |
| 1933 QN, 1933 RC | |
| Main belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 115.71 yr (42263 d) |
| Aphelion | 3.06672 AU (458.775 Gm) |
| Perihelion | 1.77398 AU (265.384 Gm) |
| 2.42035 AU (362.079 Gm) | |
| Eccentricity | 0.26706 |
| 3.77 yr (1375.4 d) | |
|
Average orbital speed
|
19.15 km/s |
| 84.9293° | |
| 0° 15m 42.3s / day | |
| Inclination | 25.6443° |
| 335.566° | |
| 251.567° | |
| Earth MOID | 0.91311 AU (136.599 Gm) |
| Jupiter MOID | 2.331 AU (348.7 Gm) |
| Jupiter Tisserand parameter | 3.335 |
| Physical characteristics | |
| Dimensions | 23.66±3.0 km |
| Mass | unknown |
|
Mean density
|
unknown |
|
Equatorial surface gravity
|
unknown |
|
Equatorial escape velocity
|
unknown |
| 11.681 h (0.4867 d) | |
| 0.1045±0.033 | |
| Temperature | unknown |
| unknown | |
| 11.9 | |
265 Anna is a typical Main belt asteroid.
It was discovered by Johann Palisa on 25 February 1887 in Vienna and was probably named after the daughter of astronomer Edmund Weiss.
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