Comet C/2015 ER61 Panstarrs after recent Outburst

Photographer
Mike Olason
Email
moicylander@centurylink.net
Location of photo
Denver Colorado
Date/Time of photo
9 April 2017, 1029UT
Equipment
11" SCT and STF-8300M CCD Camera, 1" Refractor Finderscope and ST-402ME CCD Camera
Description
After the outburst on April 4 Comet C/2015 ER61 Panstarrs is now about magnitude 6. The comet was moving 1.3 degrees per day in our skies when these images were taken, thus the streaked stars in such short images. The only way to take images longer than a few minutes of comets moving this fast and not show star movement is to remove the comet from the streaked star field of the original image and insert the comet back into a static star field using photographic artistry. Makes for a nice picture but does not reflect reality.
CATEGORIES
Meteor, Comet & Asteroid Pictures, Online Gallery
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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