Astroimager Gerald Rhemann of Vienna, Austria, took this photograph of Comet ISON (C/2012 S1 ISON) on November 17, 2013, from Ebenwaldhöhe, Lower Austria. He used an 8-inch f/3.6 astrograph and a CCD camera. He created an LRGB image by taking exposures of 10, 3, 3, and 3 minutes, respectively, through each filter.