420 Bertholda
| Discovery A | |
|---|---|
| Discoverer | Max Wolf |
| Discovery Date | September 7, 1896 |
| Alternate Designations | 1896 CY B |
| Category | Main belt (Cybele) |
| Orbital Elements C 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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Categories: Asteroid stubs | Cybele asteroids