204 Kallisto
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 8 October 1879 |
| Designations | |
|
Named after
|
Callisto |
| n/a | |
| Main belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.52 yr (49863 d) |
| Aphelion | 3.13704 AU (469.295 Gm) |
| Perihelion | 2.20244 AU (329.480 Gm) |
| 2.66974 AU (399.387 Gm) | |
| Eccentricity | 0.17504 |
| 4.36 yr (1593.3 d) | |
|
Average orbital speed
|
18.22 km/s |
| 230.567° | |
| 0° 13m 33.398s / day | |
| Inclination | 8.28673° |
| 205.123° | |
| 55.4125° | |
| Earth MOID | 1.19997 AU (179.513 Gm) |
| Jupiter MOID | 1.94556 AU (291.052 Gm) |
| Jupiter Tisserand parameter | 3.345 |
| Physical characteristics | |
| Dimensions |
48.57±1.2 km 50.36 ± 1.69 km |
| Mass | (0.60 ± 1.81) × 1018 kg |
| 19.489 h (0.8120 d) | |
| 0.2082±0.010 | |
| S | |
| 8.89 | |
204 Kallisto is a fairly typical, although sizeable Main belt asteroid. It is classified as an S-type asteroid. Like other asteroids of its type, it is light in colour.
It was discovered by Johann Palisa on October 8, 1879 in Pola.
The asteroid was named after the same nymph Callisto in Greek mythology as Jupiter's moon Callisto.
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Wikipedia