Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5477
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M101 Pinwheel Galaxy, Donghun Kim
M101 Pinwheel Galaxy
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M101 Pinwheel Galaxy

Getting plate-solving status, please wait...
M101 Pinwheel Galaxy, Donghun Kim
M101 Pinwheel Galaxy
Powered byPixInsight

M101 Pinwheel Galaxy

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Description

I've learned two lessons while working on this.

Always dither on both axis. I tried only RA dither and I ended up with horrible vertical bandings. PixInsight's Canon banding removal script came to rescue and removed the most bandings but still I could bot be able to process as I wanted because the bandings got too noticeable.

Do not try RGB when the object is near the moon!

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M101 Pinwheel Galaxy, Donghun Kim