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A Quick IC434 Horsehead Nebula in Sydney
Last Sunday evening in Sydney was clear until 11.00pm with some scattered passing high cloud , so decided to give the Horsehead a go for only the second time using my 2600MC and ZWO Duoband filter
Bortle 8 skies ( no moon around )
6” f6 Bintel Newt ( my old $299 workhorse)
EQ6-R mount
ZWOASI2600MC set in Ascom highest dynamic range ( gain 0 ) cooled to -12C
15 x 3 minute dithered guided subs ( took 23 but had to discard a few due to cloud and a dither that went a bit wild )
15 x darks
No flats
PHD2 guiding 0.90 to 1.00 arc sec error
Goto and navigation EQMOD and Ascom Stellarium
Frame focus and capture APT
Stacked in DSS
Processed in Startools V1.6 OSC Linear data set
Binned at 35% ( normally Bin at 50% with Startools )
Image had an unusually high level of noise most probably due to the very small amount of ordinary data captured ( only 45mins worth )
Crop version LRGB
Crop version Synthetic Luminance only
Cropping lost some resolution
Comments most welcome
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