Comet 41P Tuttle-Giacobini-Kresak with Spiral Galaxy NGC 6015

Photographer
Mike Olason
Email
moicylander@centurylink.net
Location of photo
Denver Colorado
Date/Time of photo
9 April 2017, 1059UT
Equipment
11" SC Telescope and STF-8300M CCD Camera, 1" Refractor Finderscope and ST-402ME CCD Camera
Description
Comet 41P is 1/4 degree from the background spiral galaxy NGC 6015. The comet is about magnitude 7 and the galaxy is magnitude 11.7. The color image is 1 degree by 1 degree with the stars showing as short red, multi color and blue streaks even in this short 6 minutes of RGB images due to the comet moving almost 2 degrees per day across our skies. The only way to take images longer than a few minutes of comets moving this fast and not show star movement is to remove the comet from the streaked star field of the original image and insert the comet back into a static star field using photographic artistry. Makes for a nice image but does not reflect reality.
CATEGORIES
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 "moicylander@centurylink.net".
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