273 Atropos
Atropos (minor planet designation: 273 Atropos) is a typical Main belt asteroid that was discovered by Austrian astronomer Johann Palisa on 8 March 1888 in Vienna.
Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 8 March 1888 |
| Designations | |
MPC designation | (273) Atropos |
| Pronunciation | /ˈætrəpɒs/ |
Named after | Atropos |
Alternative designations | A888 EA, 1910 CC |
Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 105.94 yr (38695 d) |
| Aphelion | 2.7792 AU (415.76 Gm) |
| Perihelion | 2.01097 AU (300.837 Gm) |
Semi-major axis | 2.39507 AU (358.297 Gm) |
| Eccentricity | 0.16037 |
Orbital period (sidereal) | 3.71 yr (1353.9 d) |
Mean anomaly | 127.80° |
Mean motion | 0° 15m 57.276s / day |
| Inclination | 20.454° |
Longitude of ascending node | 158.957° |
| 121.16° | |
| Physical characteristics | |
| Dimensions | 29.27±1.3 km |
Synodic rotation period | 23.924 h (0.9968 d) 23.852 h |
| 0.1624±0.015 | |
| 10.26 | |
Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, in 2007 gave a light curve with a period of 23.852 ± 0.003 hours and a brightness variation of 0.60 ± 0.03 in magnitude.
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