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Meeting Countdown for COMET ISON PERIHELION

Happy Perihelion! was on  Thursday, 28 November 2013
at 16:52, EST timezone (-0500 GMT)
COMET ISON PERIHELION was 1663 days, 20 hours ago

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Apsis - Perihelion Information

  1. Apsis - Wikipedia, the free encyclopedia
    An apsis (Greek ἁψίς, gen. ἁψίδος), plural apsides (pron.: /ˈæpsɨdiːz/; Greek: ἁψίδες), is the point of greatest or least distance of a body from one of the foci of its elliptical orbit. In modern celestial mechanics this focus is also the center of attraction, which is usuall
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