Startrek
07-07-2020, 07:31 PM
Been away a week now at my South Coast weekender ( Bortle 3 Skies ) and the weather hasn’t been very cooperative for AP so far ( typical east coast winter weather ) There have been some beautiful sunny winter days but mostly patchy cloudy nights
After polar aligning , with a full moon ascending and cloud imminent ( according to CFN ) I captured about 45 minutes of data on NGC 5139 Omega Centauri ( the big daddy of globular clusters )
8” 5 Bintel GSO newt on an EQ6-R Mount
Canon 600D stock with a Baader coma corrector ( no filters )
ISO 800
Sensor electronics running at 19 to 21 degrees
30 x 90 sec dithered guided subs
15 x darks
Dithered every second frame
PHD2 guiding at 0.75 to 0.80 total rms error ( about the best this mount can guide with nearly 15kg on board ) Guide Star 3.75 to 4.18 therefore excellent seeing conditions ( SNR 39 to 41 )
Goto and tracking EQMOD, StellariumScope and Stellarium
Frame , focus and Capture BYEOS
Stacked in Deep Sky Stacker
Processed in Startools V1.5 Linear data set
Comments most welcome
Thanks for looking
After polar aligning , with a full moon ascending and cloud imminent ( according to CFN ) I captured about 45 minutes of data on NGC 5139 Omega Centauri ( the big daddy of globular clusters )
8” 5 Bintel GSO newt on an EQ6-R Mount
Canon 600D stock with a Baader coma corrector ( no filters )
ISO 800
Sensor electronics running at 19 to 21 degrees
30 x 90 sec dithered guided subs
15 x darks
Dithered every second frame
PHD2 guiding at 0.75 to 0.80 total rms error ( about the best this mount can guide with nearly 15kg on board ) Guide Star 3.75 to 4.18 therefore excellent seeing conditions ( SNR 39 to 41 )
Goto and tracking EQMOD, StellariumScope and Stellarium
Frame , focus and Capture BYEOS
Stacked in Deep Sky Stacker
Processed in Startools V1.5 Linear data set
Comments most welcome
Thanks for looking