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line of declination right ascension on earth north south celestial poles ecliptic celestial equators vernal equnox hours 30°ns 60°ns

October 15, 2012

line of declination right ascension on earth north south celestial poles ecliptic celestial equators vernal equnox hours 30°ns 60°ns

 

line of declination right ascension on earth north south celestial poles ecliptic celestial equators vernal equnox hours 30°ns 60°ns

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