3564 Talthybius

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3564 Talthybius
Discovery[1] and designation
Discovered by Edward L. G. Bowell
Discovery date October 15, 1985
Named after
1985 TC1
Jupiter Trojan
Orbital characteristics[2]
Epoch February 4, 2008 (JD 2454500.5)
Aphelion 812.459 Gm (5.431 AU)
Perihelion 751.491 Gm (5.023 AU)
781.975 Gm (5.227 AU)
Eccentricity 0.039
4365.154 d (11.95 a)
13.02 km/s
Inclination 15.492°
Physical characteristics
Dimensions 68.9 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
Temperature ~122 K

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.[1]


  1. ^ Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170.  edit

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