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M101 - Pinwheel Galaxy in LRGB


alexbb

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I'm behind lately with posting images. Now it's Pinwheel's galaxy turn.

Shot until April this year, it took me a few trips to dark/dark-ish sites to gather all the data. It's hard to believe even now how cold it was at the end of April. At the end of the last session, when I was packing, it was -5C. Now the temperature doesn't drop below 20C anymore during the night and during afternoon we have consecutive days with 38C+.

I used, as almost always, a combination of LRGB data shot through multiple telescopes, for a total of almost 13h. The 150mm newtonian was moody, not sure why I always had something that looked like astigmatism, but only in one corner. I hope it was the CC, and I'm eager to see if the GPU CC is better than the Baader MPCC.

An astrobin image is available too here: https://www.astrobin.com/23m3rv/

Clear skies and thanks for watching !

M101_LRGB_p04_crop_color2_watermark.thumb.jpg.1d6bba877f6196515298f69913f885dd.jpg

 

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