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Old 22-10-2024, 12:14 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,666
NGC 6559 Chinese Dragon Nebula in HOO

The nights have been cloudy around Sydney for 2 weeks since returning from a trip to WA so decided to reprocess NGC 6559 which was captured back in September and posted as an SHO version.
This time I processed a Bi colour HOO version which ended up having a higher noise floor to work with due to my noisy Oiii data. Capturing Oiii data under B8 skies and a moon around is not pretty , faint signal and lots of noise.
Anyway pushed the detail as far as I wanted to whilst balancing the fine noise grain.
Happy with the detail and contrast through the central core region

Same deal ……
B8 skies
Conditions poor to average ( some high cloud around )
Moon around
8”f5 Carbon Newt
EQ6-R pro mount
ZWO 2600MM with Antlia 3nm filters
3 minute dithered subs Gain 100 , -10C
12 hours of integration
Flats , Darks , Flat Darks
EQMOD , Stellarium, APT, PHD2
ASTAP
Startools V1.8 via Compose , Colour HOO preset with tweaks

Astrobin link for full resolution……..,

https://www.astrobin.com/xcjogs/

Thanks for looking

Comments welcome

Martin
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Last edited by Startrek; 22-10-2024 at 12:25 PM.
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