Return to the Whirlpool, M51

Saturday night was our last in Fort Davis. Skies were not nearly as dark as for my earlier image of M51 but steadier seeing was the winning ingredient. I used StarXTerminator to separate nebulosity and star layers enabling processing to bring out the best details in both. I stopped imaging at about 2 AM when the sky clouded over. I found 26 of 36 five minute exposures useable for a total of 2 hours 10 minutes.

Imaged starting 2022-05-01 02:32 UT. I stacked and processed 26 five minute exposoures taken with a William Optics RedCat 250/51mm telescope, Baader UV/IR cut filter, ZWO ASI 533 MC camera, and SkyWatcher AZ-EQ5 mount, ASI EAF and guide camera. All were controlled with a ZWO ASIAir Plus Controller. Processed in PixInsight, StarXTerminator, Topaz DeNoise, and Photoshop.

Content created: 2022-05-03

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