silentrunning Posted April 29, 2020 Share Posted April 29, 2020 Well unless we have a quick return to imaging friendly weather I doubt I will get colour data for this this year so I've done a quick process of the mono data. I've tried noise reduction but it brings in artefacts I don't like and nukes the fainter outer spiral arms which admittedly are deep within the noise. This is 10 x 900s subs. +Glafnazur, philjay, Sheila and 1 other 4 Link to comment Share on other sites More sharing options...
+Bino-viewer Posted April 29, 2020 Share Posted April 29, 2020 But the detail you do have is very nice ? M100 : was that the galaxy that had a Supernova fairly recently ?? Its a Messier i've not seen before. I must rectify that..... Showing magnitude +9.5 on my Sky Safari. Are the 2 other galaxy's part of M100 or background ? NGC 4323 / 4328 ? Link to comment Share on other sites More sharing options...
silentrunning Posted April 29, 2020 Author Share Posted April 29, 2020 Thanks Rob All good questions, according to the web they are indeed satellite galaxies of M100 as opposed to what look to me like stand alone more distant ellipticals and yes apparently there was a supernova in M100 recently. https://en.wikipedia.org/wiki/Messier_100 Here's the image with annotations courtesy of PI... +Glafnazur 1 Link to comment Share on other sites More sharing options...
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