255 Oppavia

Oppavia (minor planet designation: 255 Oppavia) is a sizeable Main belt asteroid. It classified as a dark P-type asteroid.

255 Oppavia
Discovery
Discovered byJohann Palisa
Discovery date31 March 1886
Designations
(255) Oppavia
Pronunciation/ɒˈpviə/
Named after
Opava
A904 EC, A924 TA,
1938 VC, 1938 XC,
1945 GD, 1951 SG
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc129.86 yr (47431 d)
Aphelion2.95866 AU (442.609 Gm)
Perihelion2.53342 AU (378.994 Gm)
2.74604 AU (410.802 Gm)
Eccentricity0.077427
4.55 yr (1662.1 d)
17.98 km/s
261.139°
0° 12m 59.735s / day
Inclination9.47209°
13.6708°
156.011°
Physical characteristics
Dimensions57.40±1.5 km
19.499 h (0.8125 d)
0.0374±0.002
Temperatureunknown
P
10.39

    It was discovered by Johann Palisa on 31 March 1886 in Vienna and was named after Opava, a 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.

    References


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