(999) Zachia
Asteroid (999) Zachia |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Major semi-axis | 2.6117 AU |
eccentricity | 0.2161 |
Perihelion - aphelion | 2.0474 AU - 3.176 AU |
Inclination of the orbit plane | 9.768 ° |
Sidereal period | 4,221 a |
Mean orbital velocity | 18.43 km / s |
Physical Properties | |
Medium diameter | 25.3 km |
Albedo | 0.199 |
Rotation period | 22.77 h |
Absolute brightness | 10,877 likes |
Spectral class | C. |
history | |
Explorer | K. Reinmuth |
Date of discovery | 1923 |
Another name | 1923 NW, 1977 CG |
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. |
(999) Zachia is an asteroid of the main belt that was discovered on August 9, 1923 by the German astronomer Karl Wilhelm Reinmuth at the Heidelberg-Königstuhl State Observatory at the University of Heidelberg .
The asteroid is named after the German astronomer Franz Xaver von Zach .