|Named after||John Zarnecki|
|Alternative names||1999 GE9|
|Epoch May 14, 2008|
|Longitude of ascending node||184.81938|
|Argument of peri||58.59235|
|Absolute magnitude (H)||15.3|
17920 Zarnecki (1999 GE9) is a main-belt asteroid. Discovered 1999 Apr. 10 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Named after Professor John Zarnecki (b. 1949), of the Open University, Milton Keynes, who has developed spacecraft instrumentation to study the surfaces and atmospheres of planets, satellites and small bodies. He was a PI for the Huygens probe/lander on the Cassini mission to Saturn and Saturn VI (Titan).
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