(194) Prokne
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Asteroid (194) Procne |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Prokne family |
| Major semi-axis | 2,618 AU |
| eccentricity | 0.236 |
| Perihelion - aphelion | 2.001 AU - 3.235 AU |
| Inclination of the orbit plane | 18.5 ° |
| Length of the ascending node | 159.5 ° |
| Argument of the periapsis | 163.1 ° |
| Time of passage of the perihelion | November 7, 2011 |
| Sidereal period | 4 a 86 d |
| Mean orbital velocity | 18.1 km / s |
| Physical Properties | |
| Medium diameter | (168 ± 4) km |
| Albedo | 0.05 |
| Rotation period | 15 h 40 min |
| Absolute brightness | 7.7 likes |
| Spectral class | C. |
| history | |
| Explorer | CHF Peters |
| Date of discovery | March 21, 1879 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(194) Prokne is an asteroid of the main asteroid belt , which was discovered on March 21, 1879 by Christian Heinrich Friedrich Peters .
The celestial body was named after Prokne , after the Greek mythology of a daughter of King Pandion of Athens .
Procne moves around the sun at a distance of 2.0 ( perihelion ) to 3.2 ( aphelion ) astronomical units in 4.2 years . The orbit is inclined 18.5 ° to the ecliptic , the orbital eccentricity is 0.24. Prokne has a diameter of 168 kilometers. It has a dark carbonaceous surface with an albedo of 0.053. It rotates around its own axis in around 15 hours and 40 minutes.