Comet C/2012 S1 (ISON) Coma Region - November 15, 2013

While I was imaging the comet using the DSLR, I decided to simultaneously photograph ISON using my guide scope and its CCD camera. Using a quarter field “Region of Interest (ROI)” setting, I imaged the coma region of Comet ISON.  The image is a bit noisy since I was only able to get 2 images due to clouds obscuring the comet.

2 images x 120-second subframes, Total= 2-minutes. Orion Short Tube 90 mm achromatic refractor, SBIG ST-8300M monochrome CCD camera, No filters, Acquisition using CCDSoft, alignment and median combine using CCD Stack, additional processing using Adobe Photoshop. ATMoB Clubhouse, Westford, MA, 15 November 2013