2013us10 20151218 cschur

 This comet is getting much higer in the sky now, nearly 40 degrees up at 5am. The gas tail is getting very faint at this time however, and is seen as a nearly featureless ray extending to the upper right. The dust tail however is still bright and extends downwards forming an anti tail as the tail dust combines with the dust in the nearly edge on orbital plane.
Lens:  Stellarvue SV80s f/6 - AKA "Zeiss APO" - with Televue .8x FR/CC
Platform:  Astrophysics AP1200 
Camera: Hutech Canon XTi at ISO 800
Exposure:  30m RGB (1m x 30)
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing  5/10, Transparency 8/10
Outside Temperature:  33F
Processing Tools:  Maxim DL, Photoshop CS2