265 Anna
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| Discovery A | |
|---|---|
| Discoverer | Johann Palisa |
| Discovery date | February 25, 1887 |
| Alternate designations B |
1933 QN, 1933 RC |
| Category | Main belt |
| Orbital elements C | |
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| Eccentricity (e) | 0.268 |
| Semi-major axis (a) | 362.038 Gm (2.42 AU) |
| Perihelion (q) | 265.134 Gm (1.772 AU) |
| Aphelion (Q) | 458.943 Gm (3.068 AU) |
| Orbital period (P) | 1375.098 d (3.76 a) |
| Mean orbital speed | 19.15 km/s |
| Inclination (i) | 25.63° |
| Longitude of the ascending node (Ω) |
335.642° |
| Argument of perihelion (ω) |
251.778° |
| Mean anomaly (M) | 64.923° |
| Physical characteristics D | |
| Dimensions | 24.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | 11.681 h |
| Spectral class | unknown |
| Absolute magnitude | 11.2 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
265 Anna is a typical Main belt asteroid.
It was discovered by Johann Palisa on February 25, 1887 in Vienna and was probably named after the daughter of astronomer E. Weiss.
[edit] References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Minor Planet Lightcurve Parameters
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