Comet Catalina (also known as C/2013 US10) is an Oort cloud comet discovered on October 31, 2013, by the Catalina Sky Survey just north of Tucson, Arizona. On January 16, 2016, it was closest to Earth at 67,230,000 miles.

Technical Information    
Date:              January 12, 2016
Location:        Green Valley, Arizona
Telescope:      Takahashi FSQ-106EDX
Camera:         SBIG STT-8300M
Filters:            Astrodon Gen 2
Mount:            AstroPhysics 1200
Exposure:       LRGB: each filter = 15 x 60 sec., all unbinned
Software:        Acquisition: Maxim DL 5, TheSkyX, Pinpoint, CCD Commander
                       Processing: CCDStack, PhotoShop CS6 with various plugins

Comet Catalina  1/12/16