Location of photoDenver, Colorado
Date/Time of photo15 December 2017, 1119UT
Equipment11" SCT f/6.4 and STF-8300M CCD Camera
DescriptionComet 103P/Hartley was at perihelion in April 2017 when it reached magnitude 11, unfortunately it was in the glare of the Sun and did not come out of that glare until October 2017 when it was magnitude 18+. In this GIF 103P is magnitude 18.8. The GIF is an animation of three 900 second images, FOV 13'x10' and was collected from 1119-1204UT. Yes, the GIF does not look very good, but remember the comet is almost magnitude 19.