256 Walpurga
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 3 April 1886 |
| Designations | |
Named after | Saint Walpurga |
| 1951 VJ | |
| 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) |
| 2.99972 AU (448.752 Gm) | |
| Eccentricity | 0.066634 |
| 5.20 yr (1897.7 d) | |
Average orbital speed | 17.2 km/s |
| 352.098° | |
| 0° 11m 22.945s / day | |
| Inclination | 13.3281° |
| 182.937° | |
| 46.5713° | |
| Earth MOID | 1.80967 AU (270.723 Gm) |
| Jupiter MOID | 1.79613 AU (268.697 Gm) |
| Jupiter Tisserand parameter | 3.209 |
| Physical characteristics | |
| Dimensions | 63.34±2.7 km |
|
16.664 h (0.6943 d)[1] 16.64 h[2] | |
| 0.0530±0.005 | |
| 9.9 | |
|
| |
256 Walpurga is a large Main belt asteroid. It was discovered by Johann Palisa on April 3, 1886 in Vienna and was named after Saint Walburga.
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]
References
- 1 2 "256 Walpurga". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- 1 2 Shipley, Heath; et al. (September 2008), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: September 2007" (PDF), The Minor Planet Bulletin, 35 (3), pp. 99–101, Bibcode:2008MPBu...35...99S, retrieved 2013-03-23.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- 256 Walpurga at the JPL Small-Body Database
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