Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  17 Boo A)  ·  17 Boo B  ·  17 kap01 Boo  ·  17 kap02 Boo  ·  82 UMa  ·  83 UMa  ·  84 UMa  ·  86 UMa  ·  Asellus Tertius  ·  HD117449  ·  HD117933  ·  HD118126  ·  HD118203  ·  HD118557  ·  HD118575  ·  HD118668  ·  HD118741  ·  HD118809  ·  HD118970  ·  HD119124  ·  HD119146  ·  HD119169  ·  HD119214  ·  HD119332  ·  HD119549  ·  HD119765  ·  HD119821  ·  HD119992  ·  HD120528  ·  HD120682  ·  And 101 more.
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M101- Pinwheel Galaxy Widefield, Dhiraj Patil
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M101- Pinwheel Galaxy Widefield

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M101- Pinwheel Galaxy Widefield, Dhiraj Patil
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M101- Pinwheel Galaxy Widefield

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Description

M101 - Pinwheel Galaxy using Nikon D780 and Nikon 70-200 mm at 200 mm.

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I tried PI DBE, new Gradient Reduction to remove severe lens vigentting; which did not work. I know I should have taken FLATS but it was cold and 3 hr drive back home Anyways. I was able to minimize lens vignetting in GraxPert in PI which did a great job in my opinion.

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M101- Pinwheel Galaxy Widefield, Dhiraj Patil