4057 Demophon
| Discovery | |
|---|---|
| Discovered by | Bowell, E. |
| Discovery site | Flagstaff |
| Discovery date | 15 October 1985 |
| Designations | |
| MPC designation | 4057 |
| 1985 TQ | |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 11130 days (30.47 yr) |
| Aphelion | 5.8842 AU (880.26 Gm) |
| Perihelion | 4.6403 AU (694.18 Gm) |
| 5.2623 AU (787.23 Gm) | |
| Eccentricity | 0.11819 |
| 12.07 yr (4409.17 d) | |
| 131.848° | |
| 0° 4m 53.933s / day | |
| Inclination | 2.8730° |
| 24.442° | |
| 59.118° | |
| Earth MOID | 3.65694 AU (547.070 Gm) |
| Jupiter MOID | 0.0727523 AU (10.88359 Gm) |
| Jupiter Tisserand parameter | 2.983 |
| Physical characteristics | |
| Dimensions | 71 km |
| 29.31 h (1.221 d) | |
| 10.1 | |
4057 Demophon (1985 TQ) is a Jupiter Trojan discovered on October 15, 1985 by Bowell, E. at Flagstaff.
Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 29.31 ± 0.07 hours with a brightness variation of 0.23 ± 0.01 magnitude.
...
Wikipedia