202 Chryseïs
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | September 11, 1879 |
| Designations | |
Named after | Chryseis |
| A901 TA, 1935 BL | |
| Main belt | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 3.367 AU |
| Perihelion | 2.78 AU |
| 3.073 AU | |
| Eccentricity | 0.096 |
|
1967.947 d (5.39 yr) | |
Average orbital speed | 16.99 km/s |
| 323.168° | |
| Inclination | 8.833° |
| 137.101° | |
| 0.423° | |
| Physical characteristics | |
| Dimensions | 86.0 km |
| 23.670 ± 0.001[1] h | |
| Albedo | 0.256 |
Spectral type | S |
| 7.42 | |
|
| |
202 Chryseïs is a large, lightly coloured Main belt asteroid that is probably composed of silicate rocks. It was discovered by C. H. F. Peters on September 11, 1879 in Clinton, New York, and was named after the mythical Trojan woman Chryseis.
The rotation period for this asteroid is close to a day long, so the construction of a complete light curve requires photometric observations from multiple locations at widely spaced latitudes. This task was completed in January and February, 2011, yielding a synodic rotation period of 23.670 ± 0.001 h, with a brightness variation of 0.20 ± 0.02 in magnitude[1]
References
- 1 2 Stephens, Robert D.; et al. (October 2011), "The Lightcurve for 202 Chryseis", The Minor Planet Bulletin 38 (4): 208–209, Bibcode:2011MPBu...38..208S.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Parameters
- Asteroid Albedo Compilation
- 202 Chryseïs at the JPL Small-Body Database
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