Asteroid 2012 TC4 only 50,000 Miles from Earth

Photographer
Mike Olason
Email
moicylander@centurylink.net
Location of photo
Denver Colorado
Date/Time of photo
12 October 2017, 0327UT
Equipment
11" SCT f/6.4 and STF-8300M CCD Camera
Description
Asteroid 2012 TC4 was only about 50,000 miles from Earth when these images were taken and only 2 hours 15 minutes from it's close approach to Earth on October 12 at 0542UT. The images were taken 1/2 hour before the Asteroid set over the Rocky Mountains. The Asteroid was magnitude 13.1 and moving at about 15 degrees per hour. The several images attempt to show the Asteroid from different perspectives.
CATEGORIES
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 "moicylander@centurylink.net".
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