194 Prokne
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters, 1879 |
| Discovery date | March 21, 1879 |
| Designations | |
| Main belt | |
| Orbital characteristics[1] | |
| Aphelion | 3.236 AU |
| Perihelion | 1.996 AU |
| 2.616 AU | |
| Eccentricity | 0.237 |
| 4.23 years | |
| Inclination | 18.50° |
| Physical characteristics | |
| Dimensions | 170.33±6.92 km[2] |
| Mass | (2.68±0.29)×1018 kg[2] |
|
Mean density
|
1.03±0.16 g=cm3[2] |
| 15.679 h[3] | |
| Albedo | 0.053 |
|
Spectral type
|
C |
| 7.68 | |
194 Prokne is a main-belt asteroid that was discovered by German-American astronomer C. H. F. Peters on March 21, 1879 in Clinton, New York, and named after Procne, the sister of Philomela in Greek mythology. Stellar occultations by Prokne have been observed twice, in 1984 from Italy and again in 1999 from Iowa (United States).
Observations from the W. M. Keck Observatory show the asteroid to be around 151 km across, with a size ratio of 1.13±0.06 between the major and minor axes. For comparison, observations by the IRAS observatory gave a diameter of 164 km.[4] The spectrum matches a classification of a C-type asteroid, indicating it has a primitive carbonaceous composition. Judging from radar data, the near surface solid density of the asteroid is 3.6+1.1
−0.9 g cm−3.[5]
Based upon a light curve that was generated from photometric observations of this asteroid at Pulkovo Observatory, it has a rotation period of 15.679±0.001 hours and varies in brightness by 0.16±0.02 in magnitude.[3]
References
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found. See Table 1.
- ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
<templatestyles src="Asbox/styles.css"></templatestyles>
_mathilde.jpg){kind=small} |
This article about a C-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
