(2209) Tianjin

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(2209) Tianjin
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Asteroid family Koronis family
Major semi-axis 2.8455  AU
eccentricity 0.0662
Perihelion - aphelion 2.6572 AU - 3.0338 AU
Inclination of the orbit plane 2.611 °
Sidereal period 4,800 a
Mean orbital velocity 17.66 km / s
Physical Properties
Medium diameter 16.44 km
Albedo 0.285
Rotation period 9.470 h
Absolute brightness 11.109 likes
Explorer Purple Mountain Observatory
Date of discovery October 28, 1978
Another name 1978 US 1 , 1927 CC, 1935 WC
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.

(2209) Tianjin is an asteroid of the main belt , which on 28 October 1978 at the Purple Mountain Observatory in Nanjing was discovered.

The asteroid is named after the Chinese city of Tianjin .

See also