JPL Horizons On-Line Ephemeris System

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1	Horizons Tips for Spitzer Solar System Observers Document version 4.0, 19 Oct 06 The Spot software will return the most accurate visibility windows for your target (i.e., the time ranges over which your target is visible Add to Reading List Source URL: ssc.spitzer.caltech.edu Language: English - Date: 2010-02-11 14:15:49 Astronomy Comets New Horizons JPL Horizons On-Line Ephemeris System Comet Encke Ephemeris Event horizon Spaceflight Astrology Astrometry
2	PDF Document Add to Reading List Source URL: www.minorplanetcenter.net Language: English - Date: 2012-01-03 18:12:44 Space Astrometry Celestial mechanics Calendars Ephemeris Comet Encke JPL Horizons On-Line Ephemeris System Epoch 39P/Oterma Astronomy Astrology Comets