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Startrek
18-04-2022, 03:09 PM
First decent clear night for months and months on the south coast but unfortunately a big bright full moon
Conditions were really good , very light nor’easter and no dew around
Captured NGC 3372 Carina as it was well placed away from the direct glare of the moon in my Dome

NexDome Obs
8” f5 GSO Newt
EQ6-R pro mount
ZWOASI2600MC Gain 0 cooled to -10C
Optolong L Extreme filter
ZWO EAF
42 x 3 minute dithered guided subs
40 x Flats
50 x Bias
Goto and Nav EQMOD and Ascom Stellarium
Framed focused and captured with APT
PHD2 Multistar Guiding ( 0.43 to 0.48 arc sec error total )
Stacked in DSS
Processed in Startools V1.7 SHO Bi colour composites
Still have a little coma in the corners with the Baader Mk3 but used the Repair module in Startools ( warp preset ) to clean the up

It was just great to image again and see a beautiful clear night

Comments welcome
Thanks

Dave882
18-04-2022, 04:23 PM
Great images Martin. Very clean and tight indeed. :thumbsup:

Startrek
18-04-2022, 09:51 PM
Thanks Dave,
Even at HDR Gain 0 ( which I use most of the time ) and conservative length subs for NB, the 2600MC is super low noise with dark current at -10C very low at only 0.00049. I only had to apply a 2 pixel final noise reduction in Startools to mitigate any minor residual noise which you could only see zoomed way in. Brilliant OSC camera !! Dithering each sub helps a lot too .....
Colour is a bit wishy washy, bit too heavy on the bright saturation too but the detail is there

Cheers

Martin