What are RA and DEC?
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Celestial Coordinate System
Open Course : Astronomy : Introduction : Lecture 2 : Motion of
What format do I use to input RA and DEC coordinates? : Support
Celestial Coordinates for Beginners - Sky & Telescope - Sky
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Sept. 27, Apparent motions: Planets, Kepler's Laws & Orbits Review
What are RA and DEC?
Astronomy Without a Telescope
Right ascension - Wikipedia
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