202 Chryseïs
Chryseïs (minor planet designation: 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.
 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | 11 September 1879 |
| Designations | |
| (202) Chryseïs | |
| Pronunciation | /kraɪˈsiːɪs/[1] |
Named after | Chryseis |
| A879 RA, A901 TA 1935 BL | |
| Main belt | |
| Orbital characteristics[2] | |
| 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° | |
| Physical characteristics | |
| Dimensions | 86.15±2.4 km |
| 23.670 h (0.9863 d)[2] 23.670 ± 0.001 h[3] | |
| 0.2562±0.015 | |
| S | |
| 7.42 | |
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[3]
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- "202 Chryseis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- 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
- Asteroid Lightcurve Parameters
- Asteroid Albedo Compilation
- 202 Chryseïs at AstDyS-2, Asteroids—Dynamic Site
- 202 Chryseïs at the JPL Small-Body Database
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