202 Chryseïs
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | 11 September 1879 |
| Designations | |
Named after | Chryseis |
| A901 TA, 1935 BL | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.57 yr (49881 d) |
| Aphelion | 3.3859 AU (506.52 Gm) |
| Perihelion | 2.7567 AU (412.40 Gm) |
| 3.0713 AU (459.46 Gm) | |
| Eccentricity | 0.10244 |
| 5.38 yr (1966.0 d) | |
Average orbital speed | 16.99 km/s |
| 11.1527° | |
| 0° 10m 59.196s / day | |
| Inclination | 8.8535° |
| 136.848° | |
| 1.3159° | |
| Earth MOID | 1.76899 AU (264.637 Gm) |
| Jupiter MOID | 1.64354 AU (245.870 Gm) |
| Jupiter Tisserand parameter | 3.204 |
| Physical characteristics | |
| Dimensions | 86.15±2.4 km |
|
23.670 h (0.9863 d)[1] 23.670 ± 0.001 h[2] | |
| 0.2562±0.015 | |
| 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[2]
References
- 1 2 "202 Chryseis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- 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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