NGC 104 ( 47 Tucanae ) Globular Cluster (Martin Dowd)

Celestial hemisphere: Southern · Constellation: Tucana (Tuc) · Contains: 47 Tuc Cluster · NGC 104

NGC 104 ( 47 Tucanae ) Globular Cluster, Martin Dowd

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NGC 104 ( 47 Tucanae ) Globular Cluster

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NGC 104 ( 47 Tucanae ) Globular Cluster

Captured NGC104 during a full moon using short subs and no filter ( only internal UV/IR cut protective window in camera ) under my Bortle 8 City / suburban Skyglow.
As expected gradients were severe with the image almost completely whited out prior to a linear stretch and a gradient wipe.
NGC 104 is the second largest and brightest globular cluster under our southern skies behind Omega Centauri, the big daddy of them all. This cluster has a very dense bright core which uniformly dissipates quickly to the outer regions. Other popular globular clusters during our Winter period are M22 and M30 which are significantly smaller.

Location: Backyard Sydney, Australia
Bortle 8 Skyglow
Full Moon
8" f5 Klaus Helmerich carbon fibre Newt
Skywatcher EQ6 - R Pro mount
ZWO 2600MC cooled to -10C , Gain 101
No Filter
Guide Scope Orion 60mm with helical focuser
Guide Camera ZWO120MM - S
TS Optics GPU Coma Corrector
Goto and Tracking EQMOD and Ascom Stellarium
Capture software APT
PHD2 Multistar guiding ( 0.70 to 0.80 total ) poor to average seeing
100 x 30 sec subs ( dithered every 3rd sub )
40 x Flats
60 x Bias
Stacked in Deep Sky Stacker
Processed in Startools v1.8 , data set loaded via Compose with Luminance Color set to L+Synthetic L from R ( 2 x G ) B, RGB

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Astrometry.net job	8198553
PixInsight job	n/a
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NGC 104 ( 47 Tucanae ) Globular Cluster

NGC 104 ( 47 Tucanae ) Globular Cluster

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