420 Bertholda
From Biocrawler, the free encyclopedia.
| Discovery A (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
|---|---|
| Discoverer | Max Wolf |
| Discovery date | September 7, 1896 |
| Alternate designations | 1896 CY B (http://cfa-www.harvard.edu/iau/MPDes.html) |
| Category | Main belt (Cybele) |
| Orbital elements C (http://asteroid.lowell.edu/) Epoch 30 January, 2005 (JD 2453400.5) | |
| Eccentricity (e) | 0.043 |
| Semi-major axis (a) | 510.74 Gm (3.414 AU) |
| Perihelion (q) | 488.66 Gm (3.266 AU) |
| Aphelion (Q) | 532.819 Gm (3.562 AU) |
| Orbital period (P) | 2304.102 d (6.31 a) |
| Mean orbital speed | 16.12 km/s |
| Inclination (i) | 6.659° |
| Longitude of the ascending node (Ω) | 243.781° |
| Argument of perihelion (ω) | 224.423° |
| Mean anomaly (M) | 295.365° |
| Physical characteristics | |
| Dimensions | 141.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | P |
| Absolute magnitude | 8.31 |
| Albedo | unknown |
| Mean surface temperature | unknown |
420 Bertholda is a very large Main belt asteroid. It is classified as a P-type asteroid.
It was discovered by Max Wolf on September 7, 1896 in Heidelberg.
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