12242 Koon
Encyclopedia
12242 Koon is a Jupiter Trojan discovered on August 18, 1988 by C. S. Shoemaker and E. M. Shoemaker at Palomar Observatory
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Palomar Observatory
Palomar Observatory is a privately owned observatory located in San Diego County, California, southeast of Pasadena's Mount Wilson Observatory, in the Palomar Mountain Range. At approximately elevation, it is owned and operated by the California Institute of Technology...
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