[Startrek (Martin)]

Captured M22 Great Sagittarius Cluster back in early August during a waxing 50% Moon in Sydney
Almost forgot I had imaged it , found the data whilst doing some housekeeping on my Laptop
Not too many globs are presented on the forum but this is one of my personal favourites both imaging and observing it.

Bortle 7/8 Sydney Skies
50% waxing Moon
6” f6 Bintel GSO Newt
Skywatcher EQ6-R pro mount
TS Optics GPU coma corrector
ZWO2600MC cooled to -10C , Gain 100
No filters
45 x 90sec dithered guided subs
40 x Flats
60 x Bias
EQMOD, Stellarium, APT
Stacked in DSS
Processed in Startools V1.8 OSC Linear Data Set

Used the new Spatial Variant PSF Deconvolution module which worked really well on this cluster , tightened up all the stars and reduced “atmospheric blurring” Apparently this type of Decon is unique to Startools. Ivo is continuing working on these modules and this one’s a winner

Original Frame version
Crop frame version

Comments most welcome
Thanks