Iclea is a large main belt asteroid with the minor planet designation, 286 Iclea.[4] It was discovered by Austrian astronomer Johann Palisa on 3 August 1889 in Vienna, and named for the heroine of Camille Flammarion's astronomical romance Uranie.[5][6] This object is orbiting the Sun at a distance of 3.19 AU with a period of 5.711 years and an orbital eccentricity (ovalness) of 0.029. The orbital plane is tilted at an angle of 17.9° to the plane of the ecliptic.[1]
Discovery | |
---|---|
Discovered by | Johann Palisa |
Discovery date | 3 August 1889 |
Designations | |
(286) Iclea | |
Pronunciation | French: [ikle.a] |
Named after | Icléa |
A889 PB | |
Main belt | |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 117.95 yr (43,083 d) |
Aphelion | 3.287 AU (491.8 Gm) |
Perihelion | 3.102 AU (464.1 Gm) |
3.195 AU (477.9 Gm) | |
Eccentricity | 0.028921 |
5.71 yr (2,085.8 d) | |
49.3850° | |
0° 10m 21.335s / day | |
Inclination | 17.9010° |
149.115° | |
213.463° | |
Physical characteristics | |
Dimensions | 94.30±2.6 km[2] |
15.365 h (0.6402 d)[3] | |
0.0508±0.003 | |
9.0 | |
This asteroid has a classification of CX in the Tholen taxonomy, indicating a generally carbonaceous composition.[1] Infrared measurements indicate a cross-sectional diameter of approximately 94.3 km.[2] Photometric observations of this asteroid in 2001 provided a light curve that was used to derive a synodic rotation period of 15.365±0.002 hours with an amplitude of 0.15 magnitude.[3]