C/2012 S1 ISON

Large Version
2013 October 14 04:00 UT, - Ritchey-Chretien 20" F/8 at F/2.8 ST-10XME L b1x1 RGB b2x2 for 24 min tot exp.
© 2013 Dr Paolo Candy, Ci.A.O. Italy

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