C/2012 S1 is a non-periodic comet discovered on September 21, 2012 by Vitaly Nevsky and Artyom Novichonok with the ISON (International Scientific Optical Network) telescope. It is better known as Comet ISON.
Image taken using the 32-inch Schulman telescope with STX camera on Mt. Lemmon, AZ. Data capture and reduction by Adam Block, University of Arizona. LRGB processing by JDS using CCDStack, Photoshop CS6, and Noise Ninja.
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