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IC 4628 Prawn Nebula ( first image )
Captured IC 4628 Prawn Nebula for the first time last week at my South Coast NSW retreat. Located in Scorpius this emission nebula has eluded me for some time now but with my current set up was no problem imaging this fascinating object at magnitude 7.5 brightness. Seeing conditions were poor during most of the night which reflected in average to poor guiding numbers ( 1.10 to 1.30 arc sec total ) tried to dampen the guiding but Mother Nature is always the winner , still ended up with nice round , but slightly bloated stars. Only discarded 3 subs
A really enjoyable object to image !
South Coast NSW
Bortle 3 skies
82% waxing moon
NexDome Obs
8” f5 GSO newt
Skywatcher EQ6-R mount
Imaging Camera ZWOASI2600MC set to Ascom Highest Dynamic Range cooled to -15C
Filter - Optolong L Extreme 2” for OSC
Guide camera ZWOASI120MM-S
45 x 4 minute dithered guided subs
PHD2 guiding at 1.10 to 1.30 arc sec total
Goto and Nav EQMOD and Ascom Stellarium
Framed focused and captured with APT
Stacked in DSS
Processed in Startools V1.7 OSC linear data set
2 image versions
Synthetic Luminance ( Mono )
OSC LRGB colour
Comments most welcome
Thanks
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