New Comet C/2017 K5 Panstarrs

Mike Olason
Location of photo
Denver Colorado
Date/Time of photo
19 June 2017, 0725UT
11" SCT f/6.4 and STF-8300M CCD Camera
This comet is about magnitude 21. It was discovered May 27 and should reach magnitude 19-20 from 2019 to 2021. After a few attempts to image this very faint comet with an 11" SCT all the right conditions finally emerged. These images were taken at 6150 feet, a moonless sky, a starless patch of sky around the comet (stars < mag 21), a slow moving comet, no wind, no hazy skies, no Chem trails, the comet was directly overhead, no neighbors lights on, no deer or other critters touched the scope, the mount tracked perfectly and only one of the five 15 minute images could not be used. That is all it takes to image a 21st magnitude comet with an 11" SCT and an STF-8300M CCD Camera. In other words, for my setup it is almost impossible and the image will never make it into Astronomy or Sky & Telescope. The comet is the fuzzy dot in the center of the circle.
Astronomy Pictures: Sky & Telescope's Online Gallery, Meteor, Comet & Asteroid Pictures
Mike Olason

About Mike Olason

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 almost magnitude 21 on a perfect night. Unfortunately ChemTrails have turned Denver cloudy and dry. I use the camera software CCDOps to process my images. All I do to each image is dark subtraction and flat field, stack images as required to show faint comets, contrast/bright adjust the final image and maybe use a median filter to reduce the image noise. The result is an image that reflects reality and will never win any picture of the day award. If you would like to use my images for a project or ask a question send me an email to "".
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