Two Thirds of a Triplet

[MarkS]

M65 & M66 taken over 2 nights:  25/26 Feb 2019

Modified Sony A7S on Celestron C11 with Starizona LF 0.72x Corrector
6.5hours of data in 30sec subexposures - yes that's nearly 800 subs!



Larger version here:
http://www.markshelley.co.uk/Astronomy/2019/m65m66_20190225.jpg

Mark

[RobertM]

That's wonderful Mark !  If any criticism, and to be really picky, I would say, given how smooth the data seems to be, that it could possibly take a bit more sharpening.  I especially like the detail in M65, and the reason I think it could possibly take a bit more sharpening.

Edit... 800 subs ! that must have taken a while to process especially as, I assume, you drizzle stacked it !

Robert

[Carole]

Excellent Mark, Great detail and colour.
I think I agree with Robert that it could take a bit more selective sharpening, though still great as it is.

yes that's nearly 800 subs!

!!!!!!!!!!!!!!!!
Wow, you must have a very good computer.  I recently downloaded a whole load of Roger's CMOS subs and it really overloaded my computer, I was glad to delete them again.  But I guess mine is older and less good spec than yours.

Carole

[The Thing]

That is really wonderful hubbly jubbly image. Loads of lovely detail and excellent colour without overdoing it. When you look around there are quite a few tiddly galaxies in evidence as well. Lovely.

[Hugh]

Lovely picture Mark and to think that there is (in simple distance from Earth terms) 6 million light years between them!

Hugh

[NoelC]

Lovely detail on the galaxies, well done Mark.
Noel

[MarkS]

That's wonderful Mark !  If any criticism, and to be really picky, I would say, given how smooth the data seems to be, that it could possibly take a bit more sharpening.  I especially like the detail in M65, and the reason I think it could possibly take a bit more sharpening.

Edit... 800 subs ! that must have taken a while to process especially as, I assume, you drizzle stacked it !

It might take a tiny bit more deconvolution but I was trying to keep the noise artifacts under control.

Yes, 800 subs took ages to calibrate and integrate - especially using my usual 2x drizzle.  I reckon the calibration, stacking and drizzle stacking took around 6 hours.

Mark