![]() 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 | |
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.
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]
![]() 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 | |
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.
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]