Comet C/2015 ER61 Panstarrs passing by mottled Galaxy NGC 3521

Mike Olason
Location of photo
Denver Colorado
Date/Time of photo
2016/05/29 0514UT
11" SC f/6 telescope and STF-8300M CCD camera
17th magnitude comet C/2015 ER61 Panstarrs is passing by 10th magnitude mottled galaxy NGC 3521. The comet will continue to brighten and will be 7th magnitude in the spring of 2017. Find a color picture of galaxy NGC 3521, it is amazing.
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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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