Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  HD122865  ·  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  Pinwheel galaxy
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M101 HaLRGB, Rodd Dryfoos
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M101 HaLRGB

Getting plate-solving status, please wait...
M101 HaLRGB, Rodd Dryfoos
Powered byPixInsight

M101 HaLRGB

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Description

My third attempt at this data set. I find M101 a very difficult target to get right. It is very easy to push the data too far, especially in poor skies. This is a traditional HaLRGB composition. I did not use deconvolution as I had in the past for I find it very difficult to control in this target. I will keep trying to devise a more reliable way to target high signal areas and hope to post a subsequent version using deconvolution. I hope a more balanced, lightly processed image is apparent.

deconvolution was used in later versions, including the last

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M101 HaLRGB, Rodd Dryfoos

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