255 Oppavia
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | March 31, 1886 |
| Designations | |
Named after | Opava |
|
A904 EC, A924 TA, 1938 VC, 1938 XC, 1945 GD, 1951 SG | |
| Main belt | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 443.748 Gm (2.966 AU) |
| Perihelion | 377.374 Gm (2.523 AU) |
| 410.561 Gm (2.744 AU) | |
| Eccentricity | 0.081 |
| 1660.616 d (4.55 a) | |
Average orbital speed | 17.98 km/s |
| 74.62° | |
| Inclination | 9.486° |
| 13.774° | |
| 152.96° | |
| Physical characteristics | |
| Dimensions | 57.0 km |
| Mass | unknown |
Mean density | unknown |
| unknown | |
| unknown | |
| unknown | |
| Albedo | 0.0374 |
| Temperature | unknown |
Spectral type | P |
| 10.39 | |
|
| |
255 Oppavia is a sizeable Main belt asteroid. It classified as a dark P-type asteroid.
It was discovered by Johann Palisa on March 31, 1886 in Vienna and was named after Opava, town in the Czech Republic (then part of Austria-Hungary), where Palisa was born.
Oppavia was long thought to be a member of the now defunct Ceres asteroid family, but was found to be an unrelated interloper on the basis of its non-matching spectral type.
External links
- Orbital simulation of asteroid 255 Oppavia
- Asteroid 255 Oppavia in Planetky z našich luhů a hájů (in Czech language)
References
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 255 Oppavia at the JPL Small-Body Database
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