View Full Version here: : Ngc1566
theodog
17-11-2007, 10:09 AM
This is one of my first attempts at LRGB galaxy imaging.
4x10min L and 10min each of RGB. Autoguided through a 10" with a SBig7e and Meade filters
Over-processed using MaximDL to bring out the faint outer galaxy.
Darks subtracted but no flats.
Cheers
Theodog
Garyh
17-11-2007, 10:42 AM
you have certainly brought out those faint outer arms! nice work!
cheers Gary
Alchemy
17-11-2007, 10:54 AM
certainly well tracked, what mount are you using and what 10 inch scope?
theodog
17-11-2007, 11:15 AM
The 10" started as a Meade DS10. The mirrors, now marked thanks to a removalist, are all that remain. New wooden truss 'tube' and Craford style focuser.
This is carried on a Losmandy G11.
All are housed in a 'roll-of-roof' observatory.
Cheers
Theodog
iceman
17-11-2007, 12:15 PM
Lovely work, excellent resolution.
tornado33
17-11-2007, 04:18 PM
Good work there mate. Good outer structure there. I envy your dark skies there :)
MaximDL has a reasonably good bloom removal tool - not sure why you didn't use it. :shrug: You'll need to remove the bloom on each sub before registration and combine. This can be scripted using MaximDL's scripting capabilities to simplify/automate the process. If you've got a lot of subs, its worth scripting.
The typical muted colours of an LRGB are present. Try layering the luminance at 50% opacity first, then boosting colour saturation either using saturation controls or shadow/highlight tool. Flatten the image, then relayer the luminance at 100% opacity to get full resolution. Thus the image becomes a LLRGB composite. There are many other processing tricks to manage resolution and not sacrifice colours.
Look forward to seeing more.:)
Dr Nick
17-11-2007, 04:52 PM
I think darkening the background would help a lot, but you still captured some detail in there! ;)
Very nice image, you've captured some wonderful detail in the spiral arms.
Cheers
browndog
17-11-2007, 07:06 PM
Nice image. Looks like you had had great focus and tracking. Well done :thumbsup:.
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