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Old 20-05-2022, 09:01 AM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,686
NGC 5139 Omega Centauri

Captured a quick Omega as its well placed after dark
Used my new TS Optics GPU coma corrector again
85% waning moon
Bortle 7/8
6” f6 Bintel GSO newt
EQ6-R pro mount
ZWOASI2600MC set in Ascom again 100 , cooled to -10C
36 x 90 sec dithered guided subs
30 x Flats
30 x Bias
EQMOD, Stellarium, APT
Stacked in DSS
Processed in Startools V1.7 OSC Linear data set

ST Workflow ( duration 20 mins )
AutoDev first stretch for inspection
Bin 71%
Crop edges for stacking artefacts
Wipe default
AutoDev final stretch
Contrast default
HDR core only
Colour Scientific ( colour constancy ) RGB ratio
Noise reduction 4 pixels
Finish
Save

Original frame ( 1.6MB reduced by IIS to 220KB )
Crop frame ( 1.1MB reduced by IIS to 213KB )

Comments welcome
Thanks
Attached Thumbnails
Click for full-size image (C5AAF14E-FAC7-4124-B735-E59A709DDE16.jpg)
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Click for full-size image (FE70014E-F580-4988-B088-83F67AD453AD.jpg)
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