| 单词 | hipparchus satellite |
| 释义 | Hipparchus satellitenounan astronometric satellite launched in 1989 by the European Space Agency that measured the position, proper motion, and brightness of 118 218 stars down to 12th magnitude and the magnitude and colour of a million stars down to 10th magnitude Word Origin for Hipparchus satelliteafter Hipparchus, Greek astronomer (2nd century bc Words nearby Hipparchus satellitehip joint, hiplength, hipp-, hipparch, Hipparchus, Hipparchus satellite, hippeastrum, hipped, hipped roof, Hippel's disease, Hippias Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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