(147) Protogeneia
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Asteroid (147) Protogeneia |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3.134 AU |
| eccentricity | 0.03 |
| Perihelion - aphelion | 3.04 AU - 3.228 AU |
| Inclination of the orbit plane | 1.9 ° |
| Length of the ascending node | 248.4 ° |
| Argument of the periapsis | 101.7 ° |
| Time of passage of the perihelion | August 11, 2009 |
| Sidereal period | 5 a 200 d |
| Mean orbital velocity | 16.8 km / s |
| Physical Properties | |
| Medium diameter | 133 km |
| Albedo | 0.0492 |
| Rotation period | 7 h 51 min |
| Absolute brightness | 8.27 likes |
| Spectral class | C. |
| history | |
| Explorer | L. Schoolyard |
| Date of discovery | July 10, 1875 |
| 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. | |
(147) Protogeneia is an asteroid of the outer main asteroid belt , which was discovered on June 10, 1875 by Lipót Schulhof .
The heavenly body was named after Protogeneia , who in Greek mythology was the daughter of Deucalion and Pyrrha.
Protogeneia moves between 3,028 ( perihelion ) astronomical units to 3,241 astronomical units ( aphelion ) in 5.55 years around the sun . The orbit is inclined 1.935 ° to the ecliptic , the orbital eccentricity is 0.034.
Protogeneia has a diameter of 133 km. It has a dark carbon-rich surface with an albedo of 0.049.