SJAA member image: Supernova In M82!

The Supernova in M82 (a galaxy that is over 11 million light years away) is now visual magnitude 11 – still bright enough for a moderate sized scopes (6-8 inches) under moderate skies.

By Paul Colby with Marion Barker (photo credit: Paul Colby and Marion Barker):

SN-M82-PaulColbyCrop

I’m up at 3:00 after a super pot luck at SJAA Houge Park! We had a chance to show our picture of the recent super nova in M82. We took the data on 01/25/2014 at RCDO from about 10:30-10:50. Our setup was a Orion Sirius EQ mount, Celestron C8 and Canon T3i SLR back and no auto guiding. We’ve been evolving our technique which now includes operating the camera from our Mac iBook Air using a USB cable and the free Canon camera software utility. Controlling the camera from a laptop was a big step forward for us. Finding the right camera scope connection was the hardest bit. There is a lot of things we tried that didn’t work. We settled on a T-ring/Cannon adapter ring connected to the SLR back with a short celestron 1-1/4 inch t-ring adapter found with the help of an SJAA star party neighbor who loaned us one to try. We took about 15 shots mostly at ISO of 800 using 30 sec exposure time. A couple ISO 6400 shots were also taken. I used about 12 images (JPEGS) stacked with FIGI (ImageJ on my iMac) which is free. ImageJ has an interface that is kind of like talking to space aliens but worth the effort to figure out (might make a nice SJAA class). It also allows you to create the label art like seen in the photo.

Astronomical observer for 20 years and optical engineer. I design non-imaging prism and reflector optics for commercial, medical and high-end retail lighting.

Posted in Articles, Blog, Observing Reports

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