Discovery | |
---|---|
Discovered by | Max Wolf |
Discovery date | 7 September 1896 |
Designations | |
(420) Bertholda | |
1896 CY | |
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) |
3.4163 AU (511.07 Gm) | |
Eccentricity | 0.030818 |
6.31 yr (2306.4 d) | |
220.0218 ° | |
0° 9m 21.924s / day | |
Inclination | 6.6874° |
242.661° | |
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] |
11.04 h (0.460 d) | |
0.0420±0.004 | |
P | |
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.