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Canon 7D Mark II, Canon 300mm f2.8is II, f2.8, 60sec, ISO 1600, LPS filter, Sky-Watcher Equatorial Mount, Unguided, 72 Exposures at 60sec for total of 72min of Exposure, Manually Aligned With PS, Final Edits PS and LR
Please view in shadowbox. I ventured out last night into my back yard in the light polluted area of Burlington, Vermont at -10 degrees to shoot NGC2237, known as the Rosette Nebula. This is a very large faint nebula located in between the constellations of Monoceros and Orion. It is an estimated 5,000 light years away. It is a very large object in the winter night sky, approximately 150 light years across, and taking up more than 1 degree of the sky. For reference, the moon is about 0.5 degrees in diameter! The red illumination are emission nebula (Clouds of high temperature gas, predominantly hydrogen) and the dark fractures are dark neubula (clouds of cold dark dust in space illuminated by objects behind). I shot these images over the course of three and half hours. My mount is not really designed to handle the weight of a 300f2.8, so most of the images showed elongated stars. The keeper rate was about 33%. Because the images were shot over such a long period of time, there is a slight amount of rotation misalignment. I corrected this for the most part, however there is still a noticeable amount in the lower left of this image. It's a painstaking process, so when I find the time, I may go back to re-work. Overall, I am pleased with the results. Let me know what you think! Chris White
www.whitephotogallery.com |
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by Gary Briney
on Tue Feb 17, 2015 1:01 pm
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by John Labrenz
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by Chris Kayler
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by crw816
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by Dick Ginkowski
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by Missy Mandel
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by crw816
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by pleverington
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by crw816
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by pleverington
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by Diane Miller
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