Extinct comet

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21	PDF Document Add to Reading List Source URL: catdir.loc.gov Language: English - Date: 2003-01-17 09:09:17 Astronomy Giotto Asteroid Centaur Chiron Extinct comet International Halley Watch Comets Solar System Fluid dynamics
22	PDF Document Add to Reading List Source URL: asteroidi.uai.it Language: English - Date: 2007-10-23 03:52:56 Lowell Observatory Near-Earth-Object Search Comets Astronomy Solar System Planetary science Extinct comet Asteroid
23	PDF Document Add to Reading List Source URL: articles.adsabs.harvard.edu Language: English - Date: 2013-09-27 04:38:37 Space 50P/Arend 103P/Hartley Kuiper belt 22P/Kopff Oort cloud Asteroid Extinct comet Absolute magnitude Comets Solar System Astronomy