(174) Phaedra

from Wikipedia, the free encyclopedia
Asteroid
(174) Phaedra
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.

See also