313 Chaldaea
Chaldaea (minor planet designation: 313 Chaldaea) is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It was discovered by Johann Palisa on 30 August 1891 in Vienna. It was named in honor of the Chaldeans, considered the founders of astrology.
Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 30 August 1891 |
| Designations | |
MPC designation | (313) Chaldaea |
| Pronunciation | /kælˈdiːə/ |
Named after | Chaldea |
Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 122.79 yr (44849 d) |
| Aphelion | 2.8054 AU (419.68 Gm) |
| Perihelion | 1.9456 AU (291.06 Gm) |
Semi-major axis | 2.3755 AU (355.37 Gm) |
| Eccentricity | 0.18096 |
Orbital period (sidereal) | 3.66 yr (1337.3 d) |
Mean anomaly | 262.291° |
Mean motion | 0° 16m 9.084s / day |
| Inclination | 11.654° |
Longitude of ascending node | 176.640° |
| 316.013° | |
| Physical characteristics | |
| Dimensions | 96.34±1.7 km |
Synodic rotation period | 8.392 h (0.3497 d) |
| 0.0524±0.002 | |
| C | |
| 8.90 | |
In 2003, the asteroid was detected by radar from the Arecibo Observatory at a distance of 1.07 AU. The resulting data yielded an effective diameter of 96 ± 14 km.
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