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Comet ISON from Hubble (10 April 2013) This Hubble photo of comet C/2012 S1 (ISON) was captured on April 10, 2013, when the comet was slightly closer than Jupiter's orbit at a distance of 621 million kilometers from the Sun (634 million miles from Earth). NASA, ESA, J.-Y. Li (Planetary Science Institute), and the Hubble Comet ISON Imaging Science Team