NGC 3521 Bubble Galaxy Reprocess
We currently have inclement weather on the east coast for a week or two so decided to do a reprocess of an image I captured on a clear stable night back in May, NGC 3521 Bubble Galaxy, an intermediate spiral galaxy in the constellation of Leo. Although quite dim at around magnitude 9.5 its spiral core is fairly bright with an unusually large halo extending out way beyond the spiral arms like a bubble
Captured with my 8” f5 Bintel GSO newt on the EQ6-R Mount
Canon 600D stock DSLR
ISO 800
About 2 hours of data ( 5 minute dithered guided subs and darks )
PHD2 guiding
Goto and tracking EQMOD, StellariumScope and Stellarium
Frame, focus and capture with BYEOS
Stacked in Deep Sky Stacker
Re processed in Startools V1.5 Linear data set
Cropped more of the image to achieve a cleaner wipe of gradients
Tweaked AutoDev stretch
Tweaked Life module 2 x gamma
Adjusted colour
Tweaked noise reduction a bit more
Comments most welcome
Thanks for looking
|