Comet 183P/Korlevic-Juric and Comet 314P/Montani in Earth’s Night Sky

Mike Olason
Location of photo
Denver, Colorado
Date/Time of photo
23 June 2018, 0440UT
11" SCT f/6.4 and STF-8300M CCD Camera
Comets 183P/Korlevic-Juric and 314P/Montani were only 0.11 degrees apart in Earths night sky when this collection of images were taken. Unfortunately, the 77% illuminated Moon was only 33 degrees to the east of the comets in Earths night sky. So with the Moon so close and the comets both only about magnitude 19.2 this image is rather ugly to look at. Both comets were moving to the ESE at about 0.1 degree per day. 183P was at perihelion last November, 2017 in its 9.52 year orbit and is 353 million miles from Earth in this image. 314P was at perihelion back on October, 2016 in its 19.62 year orbit and is 483 million miles from Earth in this image.
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 "".
All comments must follow the Sky & Telescope Terms of Use and will be moderated prior to posting. Please be civil in your comments. Sky & Telescope reserves the right to use the comments we receive, in whole or in part, and to use the commenter’s username, in any medium. See also the Terms of Use and Privacy Policy.


This site uses Akismet to reduce spam. Learn how your comment data is processed.