Location of Photo:
My driveway in North Boulder, Co
Date/Time of photo:
May 24 2018 at 03:33 am MDT and May 25 2018 at 03:56 am MDT
Pentax K-x, 120 mm lens, f1/4, IS0 1600, 30 sec
I am glad I knew where to look! You can see the changing position of comet in relation to the background stars. The comet magnitude was between 9 and 10. Still visible with a long exposure despite the light pollution.