Each year I return to my favourite galaxy.
(http://www.markshelley.co.uk/Astronomy/2021/m51_20210416_small.jpg)
This one is 3 hours of data taken in 30second subs at ISO 10000. Modified Sony A7S on Celestron C11 with Starizona LF 0.72x corrector.
Larger version is here:
http://www.markshelley.co.uk/Astronomy/2021/m51_20210416.jpg
The larger version is a 1920x1080 crop of a 1.5x CFA Drizzled stack with a modest amount of deconvolution and noise reduction. It's the most detailed version I've managed to create so far.
Mark
very nice image as always.
Mac.
Quote from: Mac
very nice image as always.
Thanks ;)
What a great image, especially after that, almost 6 month, hiatus. Lovely detail to the core of M51a and dust lanes of M51b.
I guess you got everything working again ;)
Edit: are you back to using the A7S or is it that the pixels are better suited to the f/l ?
Robert
Thanks Mark
Such a beautiful galaxy ~ leaves you in awe of the Universe!
Hugh
Great Mark! Superb detail in that shot. Expertly processed.
Roberto
Fantastic. I really like the background galaxies too. It reminds you that space is HUGE!
John
Quote from: RobertM
What a great image, especially after that, almost 6 month, hiatus. Lovely detail to the core of M51a and dust lanes of M51b.
I guess you got everything working again ;)
Edit: are you back to using the A7S or is it that the pixels are better suited to the f/l ?
Thanks Robert. The pixel size of the Nikon Z6 is more suited to the Tak E180 and the Sony A7S is more suited for the Celestron C11. So I never stopped using the Sony A7S.
Nice to see you imaging again Mark. Very nice results, though I wonder whether there is more data to pull out of it.
Carole
Wow - really good Mark.