M101 Pinwheel Galaxy

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M101 Pinwheel Galaxy

Unread post by menardre » Wed Apr 01, 2020 10:30 am

I tried to image M101 last night. The Pinwheel galaxy is a great example of a spiral galaxy face-on. It is about 21 million light years away. I selected M101 since it is in Ursa Major and far away from the Moon. It is also large but rather dim. Sky was fairly bright. I was able to capture 25 images of 4 minutes each before clouds rolled in. I really wanted to capture 60 images, but that was not to be. This is the first time taking longer exposures with the CEM120/SXV130 combination. I used ZWO ASI 071 and set temp to -20C. Lodestar was used as autoguider on my 90mm refractor. Fairly minimal image processing using Images Plus.
You can also see the galaxies NGC 5474 (to the right) and NGC 5473 (small galaxy below M101).


M101 process-1.jpg
M101 process-1.jpg (6.49 MiB) Viewed 414 times
Roger M.
Celestron CPC1100 EDGE, Stellarvue 130T refractor dual mounted on iOptron CEM120 on permanent pier mounted in Observatory. Imaging camera ZWO ASI 071, guide camera Lodestar.
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Re: M101 Pinwheel Galaxy

Unread post by DonB » Thu Apr 02, 2020 3:04 pm

Very nicely done. Superb image. :mrgreen: :mrgreen: :mrgreen:

"When I was 18, my father was the dumbest man I ever knew.
When I was 21, I could not believe how much he had learned in 3 years."
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Re: M101 Pinwheel Galaxy

Unread post by NGC7000 » Thu Apr 02, 2020 3:08 pm

Very nice, Roger. Great that you got out before the clouds rolled in to capture this very nice image.

Tom H
Astra inclinant, sed non obligant.
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