Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
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M81 and M82 HaLRGB, Kyle Goodwin
M81 and M82 HaLRGB
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M81 and M82 HaLRGB

Getting plate-solving status, please wait...
M81 and M82 HaLRGB, Kyle Goodwin
M81 and M82 HaLRGB
Powered byPixInsight

M81 and M82 HaLRGB

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Description

I was very unhappy with this image initially for the same reasons generally as my previously posted Iris image, since it was taken over the same nights as the second target after Iris was too low to image.  Even worse, one of the nights I did not collect any data for this project at all since the clouding out that affected my Iris image unexpectedly terminated my imaging session before the data collection for this project even began that night.  So there's no denying the data in this image is sub-optimal.  Since I'm considerably more comfortable processing galaxies rather than dark nebulae, however, I was able to do a better job with this image than the Iris one.  I'm pretty happy with the level of detail I was able to get in M81 given the seeing, transparency, and image scale.  I've tried to use Pixinsight's HDRMultiscaleTransformation several times before and never had much success as it always seemed to be way too strong, so I've normally relied on masked LocalHistogramEqualization to bring out galaxy details.  This time, however, I fiddled around until I was able to make HDRMultiscaleTransformation and I think the result is pretty interesting.  I'm not as happy with how M82 came out, but it's a harder target at this image scale and could benefit from more data and better processing.  I'm going to try M82 as one of my early targets in my new SCA260 setup soon.

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