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Old 27-08-2020, 03:27 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,675
1st Attempt of the Helix Nebula NGC 7293

I’ve never imaged the Helix planetary Nebula before mainly because of many failed attempts with the old DSLR
Unfortunately the moon was 52% lit last night under Sydney Bortle 8 skyglow but gave it a shot anyway with the ZWOASI2600MC
6” f6 newt
EQ6-R Mount
105 x 60 sec dithered guided subs
20 x darks
PHD2 guiding was atrocious, saw toothing all night at 1.50 to 170 arc sec ( dithering added you the problem )
Goto and tracking EQMOD StellariumScope and Stellarium
Frame focus and capture APT
Ascom camera control ( Highest Dynamic Range Gain 0 )
Camera cooled to -10C
ZWO 2” Duoband filter
Baader Coma Corrector
Stacked in DSS
Processed in Startools V1.5 Linear OSC data set

Comments most welcome
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