261 Prymno
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | October 31, 1886 |
| Designations | |
| n/a | |
| Main belt | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 380.063 Gm (2.541 AU) |
| Perihelion | 317.429 Gm (2.122 AU) |
| 348.746 Gm (2.331 AU) | |
| Eccentricity | 0.09 |
| 1300.07 d (3.56 a) | |
Average orbital speed | 19.51 km/s |
| 313.525° | |
| Inclination | 3.635° |
| 96.779° | |
| 65.502° | |
| Physical characteristics | |
| Dimensions | 51.0 km |
| Mass | unknown |
Mean density | unknown |
| unknown | |
| unknown | |
| 8.002 h | |
| Albedo | 0.114 |
| Temperature | unknown |
Spectral type | B |
| 9.44 | |
|
| |
261 Prymno is a somewhat large Main belt asteroid. It is classified as a B-type asteroid and probably has a primitive composition not unlike common C-type carbonaceous asteroids.
It was discovered by C. H. F. Peters on October 31, 1886 in Clinton, New York and was named after the Greek Oceanid Prymno.
References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
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