(174) Phaedra
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Asteroid (174) Phaedra |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 2.86 AU |
| eccentricity | 0.145 |
| Perihelion - aphelion | 2,446 AU - 3,274 AU |
| Inclination of the orbit plane | 12.1 ° |
| Length of the ascending node | 327.7 ° |
| Argument of the periapsis | 289.4 ° |
| Time of passage of the perihelion | February 20, 2012 |
| Sidereal period | 4 a 306 d |
| Mean orbital velocity | 17.5 km / s |
| Physical Properties | |
| Medium diameter | 69 km |
| Albedo | 0.1495 |
| Rotation period | 5 h 45 min |
| Absolute brightness | 8.48 likes |
| Spectral class | S. |
| history | |
| Explorer | JC Watson |
| Date of discovery | September 2, 1877 |
| 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. | |
(174) Phaedra is an asteroid of the main asteroid belt discovered by James Craig Watson on September 2, 1877 .
The celestial body was named after Phaidra , a daughter of King Minos of Crete .
Phaedra moves from 2.4441 ( perihelion ) to 3.2745 ( aphelion ) astronomical units around the Sun in 4.835 years . The orbit is inclined 12.1286 ° to the ecliptic , the orbital eccentricity is 0.1452. Phaedra has a diameter of 69 kilometers. It has a relatively light surface with an albedo of 0.149.
It rotates around its own axis in around 5 hours and 43 minutes.