Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5471
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Pinwheel Galaxy M101, Herbert W Hamber
Pinwheel Galaxy M101
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Pinwheel Galaxy M101

Getting plate-solving status, please wait...
Pinwheel Galaxy M101, Herbert W Hamber
Pinwheel Galaxy M101
Powered byPixInsight

Pinwheel Galaxy M101

Equipment

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Acquisition details

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Description

Pinwheel Galaxy M101

iOptron (GSO) Ritchey-Chretien 8-inch reflector on Skywatcher HEQ5 Pro mount, Risingcam Sony IMX571 camera. No reducer or flattener used.

Natural color, no filters.

Total time  320 min, 10sec subs (my second attempt with this scope)

No guiding, no apps, no gadgets, optical polar alignment. No added or removed stars, no re-colored stars, no re-shaped stars.

Images stacked in DSS (free) and minimally edited in Gimp (also free). Minimal cropping.

At the University of California Steele/Burnand Desert Research Center (SBDRC) in Borrego Springs, Calif.

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Pinwheel Galaxy M101, Herbert W Hamber