Comet Panstarrs K1 
in the evening sky- Comet in Ursa Major
May 9, 2014

 This comet is turning into a splendid object for imaging. Now around 8th magnitude, it is sliding under the handle of the big dipper this week in a field of faint galaxies. The moon was around 70% full, however I wanted to test out a new CCD set up with the 80mm Stellarvue for recording the very faint ion tail, seen here extending downward from the coma. Surprisingly, the comet moved significantly in the 2 minute sub frames, and this limits the maximum exposure for a single frame. Combined here are 10 of these for an integrated luminance of 20 minutes, with an added 6 minutes for color data that I binned 2 x 2 for much more sensitivity on the comets nice teal color.
Select an image size for a larger view: 1290 x 960
Here is the Stellarvue SV80s astrograph. I can thread the field flattener directly into the filter wheel and it gives the correct spacing to the chip for best coma correction. The water cooling tubes can be seen on the cameras rear. Select an image size for a larger view: 1290 x 960
Lens: Stellarvue SV80s f/6 - AKA "Zeiss APO" - with Televue .8x FR/CC Platform: Astrophysics AP1200 Exposure: 26m LRGB Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 5/10, Transparency 3/10 Outside Temperature: 45F Processing Tools: Maxim DL, Photoshop CS2 HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS