Global Information420 Bertholda information
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | 7 September 1896 |
| Designations | |
MPC designation | (420) Bertholda |
Alternative designations | 1896 CY |
Minor planet category | Main belt (Cybele) |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 115.96 yr (42353 d) |
| Aphelion | 3.5216 AU (526.82 Gm) |
| Perihelion | 3.3110 AU (495.32 Gm) |
Semi-major axis | 3.4163 AU (511.07 Gm) |
| Eccentricity | 0.030818 |
Orbital period (sidereal) | 6.31 yr (2306.4 d) |
Mean anomaly | 220.0218° |
Mean motion | 0° 9m 21.924s / day |
| Inclination | 6.6874° |
Longitude of ascending node | 242.661° |
Argument of perihelion | 236.020° |
| Earth MOID | 2.33214 AU (348.883 Gm) |
| Jupiter MOID | 1.58341 AU (236.875 Gm) |
| TJupiter | 3.132 |
| Physical characteristics | |
| Dimensions | 141.25±6.9 km[1] 141.54 ± 2.08 km[2] |
| Mass | (1.48 ± 0.09) × 1019 kg[2] |
Mean density | 9.96 ± 0.75 g/cm3[2] |
Synodic rotation period | 11.04 h (0.460 d) |
Geometric albedo | 0.0420±0.004 |
Spectral type | P |
Absolute magnitude (H) | 8.3 |
Bertholda (minor planet designation: 420 Bertholda) is a very large main-belt asteroid. It was discovered by Max Wolf on September 7, 1896, in Heidelberg, Germany. The object is part of the Cybele asteroid group,[3] and is classified as a P-type asteroid.
- ^ a b "420 Bertholda (1896 CY)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- ^ a b c Cite error: The named reference
Carry2012was invoked but never defined (see the help page). - ^ Cite error: The named reference
Lagerkvist2001was invoked but never defined (see the help page).