Comet C/2018 K1 Weiland near the Teapot Asterism

Mike Olason
Location of photo
Denver, Colorado
Date/Time of photo
3 June 2018, 1005UT
11" SCT f/6.4 and STF-8300M CCD Camera
On May 25 Comet C/2018 K1 Weiland was discovered by the ATLAS Sky Survey. In these images the comet is 2 degrees east of the star Kaus Borealis which is the star at the top of the Teapot asterism in the rich Milky Way star fields of the constellation Sagittarius. The comet is about magnitude 17.3 and can only be found with all the dim background stars by its movement in front of those stars. The single 90 second image has a bright peppered background because that background is a dense field of dim stars.
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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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