3564 Talthybius
| Discovery[1] | |
|---|---|
| Discovered by | Edward L. G. Bowell |
| Discovery date | 15 October 1985 |
| Designations | |
|
Named after
|
Talthybius |
| 1985 TC1 | |
| Jupiter Trojan | |
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 23841 days (65.27 yr) |
| Aphelion | 5.42032 AU (810.868 Gm) |
| Perihelion | 4.99427 AU (747.132 Gm) |
| 5.20729 AU (778.999 Gm) | |
| Eccentricity | 0.040909 |
| 11.88 yr (4340.27 d) | |
|
Average orbital speed
|
13.02 km/s |
| 345.151° | |
| 0° 4m 58.599s / day | |
| Inclination | 15.5081° |
| 23.7884° | |
| 203.341° | |
| Earth MOID | 3.99087 AU (597.026 Gm) |
| Jupiter MOID | 0.435077 AU (65.0866 Gm) |
| Jupiter Tisserand parameter | 2.926 |
| Physical characteristics | |
| Dimensions | 68.9 km |
|
Mean radius
|
34.46 ± 1.75 km |
| Mass | 3.4×1017 kg |
|
Mean density
|
2.0 g/cm³ |
|
Equatorial surface gravity
|
0.0193 m/s² |
|
Equatorial escape velocity
|
0.0364 km/s |
| 40.59 h (1.691 d) | |
| 0.0934 ± 0.010 | |
| Temperature | ~122 K |
| 9.4 | |
3564 Talthybius is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Talthybius, who was a herald during the Trojan War. It was discovered by Edward L. G. Bowell on October 15, 1985 in Flagstaff, Arizona at the Anderson Mesa station of the Lowell Observatory.
Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 40.59 ± 0.13 hours with a brightness variation of 0.38 ± 0.01 magnitude.
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