Discovery
Discovered byAugust Kopff Discovery date21 September 1908
Designations
MPC designation(672) Astarte
Pronunciation/əˈstɑːrtiː/
Alternative designations1908 DY
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc109.04 yr (39826 d)
Aphelion2.9012 AU (434.01 Gm) Perihelion2.2093 AU (330.51 Gm)
Semi-major axis2.5553 AU (382.27 Gm)
Eccentricity0.13538
Orbital period (sidereal)4.08 yr (1492.0 d) Mean motion0° 14m 28.644s / day
Inclination11.125°
Longitude of ascending node343.936°
Argument of perihelion308.810°
Physical characteristics
Dimensions28.5±1.3 km 32.3±1.0 km Synodic rotation period22.572 h (0.9405 d) Absolute magnitude (H)11.5