New Comet C/2017 M5 TOTAS

Mike Olason
Location of photo
Denver Colorado
Date/Time of photo
2 July 2017, 0712UT
11" SCT f/6.4 and STF-8300M CCD Camera
New Comet C/2017 M5 TOTAS (Teide Observatory Tenerife Asteroid Survey) was discovered June 23. The comet will reach magnitude 18 in 2018 and fade below magnitude 20 in 2021. Due to the dense star field that this collection of images was taken in the image is a 2X Zoom of the original so that the comet can be seen amongst the stars. The comet is in the center of the circle and is about magnitude 19.
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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