(2051) Chang

Asteroid (2051) Chang
Properties of the orbit ( animation )
Orbit type	Outer main belt
Asteroid family	Koronis family
Major semi-axis	2,324 AU
eccentricity	0.075
Perihelion - aphelion	2.842 AU - 3.056 AU
Inclination of the orbit plane	1.349 °
Length of the ascending node	215.196 °
Argument of the periapsis	172.871 °
Time of passage of the perihelion	January 30, 2015
Sidereal period	4.79 a
Physical Properties
Medium diameter	approx. 14 km
Absolute brightness	11.6 mag
history
Explorer	Harvard College Observatory
Date of discovery	October 23, 1976
Another name	1976 UC; 1928 TC; 1935 DD; 1959 EF; 1966 QN; 1971 TA ₃ ; 1971 YH; 1973 AG ₂ ; 1974 HT ₁ ; 1975 NO
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.

(2051) Chang ( 1976 UC ; 1928 TC , 1935 DD , 1959 EF ; 1966 QN , 1971 TA ₃ , 1971 YH ; 1973 AG ₂ ; 1974 HT ₁ , 1975 NO ) is an asteroid of the main belt , on 23 October 1976 was discovered by Harvard College Observatory ( Harvard University Observatory in Cambridge, Massachusetts ) at Oak Ridge Observatory . Its discoverers were Richard Eugene McCrosky , Cheng-yuan Shao , G. Schwartz and JH Bulger , who were also supported by others.

designation

The asteroid was named after Yu-che Chang (1902-1986), who was a senior astronomer in the People's Republic of China and who had been director of the Observatory on the Purple Mountain since 1950 . From 1927 to 1929 he worked at the Yerkes Observatory .