Discovered by K. Reinmuth MPC designation 2623 Zech (A919 SA) Alternative names A919 SA · 1963 RE Discovered 22 September 1919 Orbits Sun Asteroid group Asteroid belt | Discovery date 22 September 1919 Named after Gert Zech Minor planet category main-belt Absolute magnitude 13.1 Discoverer Karl Wilhelm Reinmuth | |
Discovery site Heidelberg-Königstuhl State Observatory Similar 1862 Apollo, Sun, 1419 Danzig, 1056 Azalea, 1635 Bohrmann | ||
2623 Zech (A919 SA) is a main-belt binary asteroid discovered by Karl Reinmuth at Heidelberg Observatory on 22 September 1919.
Named in honor of Gert Zech, astronomer at the Astronomisches Rechen-Institut and editor of Astronomy and Astrophysics Abstracts who has also worked on the determination of the mass of the earth and the astronomical unit from observations of 433 Eros.
Satellite
A satellite was announced orbiting the asteroid in November 2014 from lightcurve observations of the asteroid. The satellite has an orbital period of 117.2 ± 0.3 hours. On 2002-Jun-08 Zech passed 0.036 AU (5,400,000 km; 3,300,000 mi) from the major asteroid 3 Juno.
References
2623 Zech Wikipedia(Text) CC BY-SA