Walpurga (minor planet designation: 256 Walpurga) is a large Main belt asteroid. It was discovered by Johann Palisa on 3 April 1886 in Vienna and was named after Saint Walburga.
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 3 April 1886 |
| Designations | |
MPC designation | (256) Walpurga |
| Pronunciation | /vælˈpɜːrɡə/ |
Named after | Saint Walpurga |
Alternative designations | A886 GA, 1951 VJ |
Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.04 yr (47496 d) |
| Aphelion | 3.19960 AU (478.653 Gm) |
| Perihelion | 2.79984 AU (418.850 Gm) |
Semi-major axis | 2.99972 AU (448.752 Gm) |
| Eccentricity | 0.066634 |
Orbital period (sidereal) | 5.20 yr (1897.7 d) |
Mean anomaly | 352.098° |
Mean motion | 0° 11m 22.945s / day |
| Inclination | 13.3281° |
Longitude of ascending node | 182.937° |
Argument of perihelion | 46.5713° |
| Physical characteristics | |
| Dimensions | 63.34±2.7 km |
Synodic rotation period | 16.664 h (0.6943 d)[1] 16.64 h[2] |
Geometric albedo | 0.0530±0.005 |
Absolute magnitude (H) | 9.9 |
Photometric observations at the Oakley Observatory in Terre Haute, Indiana, during 2007 were used to build a light curve for this asteroid. The asteroid displayed a rotation period of 16.64 ± 0.02 hours and a brightness variation of 0.38 ± 0.02 in magnitude.[2]
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