Comet 22P Kopff visually passing through the Trifid Nebula M20

Location of photo
Denver, Colorado
Date/Time of photo
0114UT 11/12/2015
6" SCT f/10, SBIG STF-8300M
Comet 22P Kopff visually passing through the Trifid Nebula M20. Imaged shortly after sunset due to low altitude (8 degrees) of the comet in the southwest. 300 second exposure to properly expose the nebula and comet, but not smear the comet due to it's moving at 2 arc minutes per hour.
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Mike Olason

About Icylander2

I started imaging comets in 1994 with an ST-5 CCD Camera and an 11" SC Telescope. Since then the CCD cameras have changed (ST-7, ST-402ME and STF-8300M), but I am still using the 11" SC Telescope. Naturally I have used a lot of smaller telescopes to obtain larger fields of view. I live south of Denver at an elevation of 6150 feet which allows me to image comets down to about magnitude 20.5. My images are not pretty, they have only been dark subtracted, flat fielded, contrast/brightness adjusted and maybe a median filter to reduce the image noise. This is all done with the camera software CCDOps. The comet images reflect reality, not photographic artistry.
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