- 255 Oppavia
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255 Oppavia DiscoveryDiscovered by Johann Palisa Discovery date March 31, 1886 DesignationsNamed after Opava Alternate name(s) A904 EC, A924 TA,
1938 VC, 1938 XC,
1945 GD, 1951 SGMinor planet
categoryMain belt Epoch 30 January 2005 (JD 2453400.5) Aphelion 443.748 Gm (2.966 AU) Perihelion 377.374 Gm (2.523 AU) Semi-major axis 410.561 Gm (2.744 AU) Eccentricity 0.081 Orbital period 1660.616 d (4.55 a) Average orbital speed 17.98 km/s Mean anomaly 74.62° Inclination 9.486° Longitude of ascending node 13.774° Argument of perihelion 152.96° Physical characteristicsDimensions 57.0 km Mass unknown Mean density unknown Equatorial surface gravity unknown Escape velocity unknown Rotation period unknown Albedo 0.0374 Temperature unknown Spectral type P Absolute magnitude (H) 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
Minor planets navigator Small Solar System bodies Minor planets - Designation
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Comets Meteoroids Lists / categories - Asteroid groups and families
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Categories:- Main Belt asteroids
- P-type asteroids
- Asteroids named for places
- Astronomical objects discovered in 1886
- Discoveries by Johann Palisa
- Main Belt asteroid stubs
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