(1838) Ursa
Asteroid (1838) Ursa |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 3.212 AU |
eccentricity | 0.021 |
Perihelion - aphelion | 3.144 AU - 3.281 AU |
Inclination of the orbit plane | 21.991 ° |
Sidereal period | 5.76 a |
Physical Properties | |
Medium diameter | (34.9 ± 1.6) km |
Albedo | 0.084 ± 0.008 |
Rotation period | 16,141 h |
Absolute brightness | 10.6 mag |
history | |
Explorer | Paul Wild |
Date of discovery | 20th October 1971 |
Another name | 1971 UC, 1951 GB 1 , 1954 UA, 1965 UE, 1977 UP 1 |
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. |
(1838) Ursa is an asteroid of the main belt that was discovered on October 20, 1971 by the Swiss astronomer Paul Wild from the Zimmerwald Observatory at the University of Bern .
The asteroid is named after the wife of the explorer Ursula and after his son Urs.