Comet 73P Schwassmann-Wachmann and the newest Fragment 73P-BT

Mike Olason
Location of photo
Denver Colorado
Date/Time of photo
2017/02/15 1231UT
11" SC Telescope and STF-8300M CCD Camera
In 1995 comet 73P shattered into 4 big fragments. In 2006 these big fragments had shed dozen of smaller fragments and hundreds of smaller chunks. This year 73P fragment C has shed a brighter fragment called 73P-BT. Unfortunately 73P is low on the morning horizon this return for the Northern Hemisphere.
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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 about magnitude 20.5. My images are not pretty, they have only been dark subtracted, flat fielded, contrast/brightness adjusted and maybe a median filter to reduce the image noise. This is all done with the camera software CCDOps. The comet images reflect reality, not photographic artistry.
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