View Full Version here: : Cat's Paw NGC6334
cometcatcher
27-06-2017, 11:52 PM
NGC6334 taken over about 6 nights. This is 730 x 30 seconds unguided + 225 x 60 seconds guided with PHD2 and 50mm guidescope for a total of 590 minutes or about 9.8 hours. GSO 10" F4 Newtonian, Baader Semi-Apo filter, Canon 1100D full spectrum, HEQ5 Pro.
Probably forgotten something. I'm so tired I'm nodding off at the keyboard.
Bigger at Astrobin ---> http://astrob.in/301159/0/
Atmos
28-06-2017, 07:27 AM
Some nice detail Kevin :thumbsup:
SimmoW
28-06-2017, 08:35 AM
Thats good, and a great fov! I'm giving my new 10 inch setup first light up at Heathcote, you've given me another target to consider, thanks
strongmanmike
28-06-2017, 09:09 AM
Not bad Kevin :thumbsup:
Mike
Slawomir
28-06-2017, 09:42 AM
A very solid effort and a nice result Kevin :thumbsup:
traveller
28-06-2017, 10:01 AM
Lovely shot Kevin, great detail captured.
Well done.
Bo
Retrograde
28-06-2017, 10:38 AM
Looks great Kevin. Nice image scale and colour.
cometcatcher
28-06-2017, 11:34 AM
Thanks Colin! My most detailed one of the cat's paw to date.
Thanks Simon! Don't forget the Lobster next to it. NGC6357.
Thanks Mike! I tried getting a pic through your finderscope, but there was some bouncer fellow guarding it, so I had to use my own scope instead. :P
Thanks Suavi!
Thanks Bo! I'm fairly happy with it.
Thanks Pete! It's all kinda red, but has shades of red. I guess there's not much OIII in it, mostly Ha.
ChrisV
28-06-2017, 11:56 AM
That's really nice.
I was banging away at the Cat's Paw for a few nights last week. I have about 1.5 hrs on it and its still noisy and not well defined like you beautiful shot. Maybe I will persist ...
strongmanmike
28-06-2017, 12:07 PM
Meah, that guy's a pussy :)
marc4darkskies
28-06-2017, 12:28 PM
Not bad Kevin - good depth and tonality. :thumbsup: Well done.
But, having just pre-processed some colour for my upcoming LRGB rendition, I can tell you that it's not just red. There is significant blue signal coming out of this beastie! This manifests in some nice blue reflection and some rich pink and magenta hues arising from OIII. The trick is to let the blue shine through.
cometcatcher
28-06-2017, 04:39 PM
Keep persisting. More subs = less noise.
I suspected there was Marcus, but when using the Semi-Apo filter it causes the Ha to dominate. I don't have an OIII filter and being an OSC camera anyway I'm just figuring out a way of adding some OIII. Maybe if I took some subs with a green filter and added them to the green or blue channel? Something to experiment with perhaps, although I really need a mono cam for what I want to do.
Atmos
28-06-2017, 04:52 PM
Marcus can correct me if I am wrong but this should be reasonably close to correct RGB. Shot with a DSLR, lacking data for some of the blue however as can be seen with some of the mottling in the background.
Andy01
28-06-2017, 05:07 PM
Nice work Kevin, composition is pleasing to the eye.
Blacks look a bit clipped on my monitor though?
I'm amazed what you pull out of a bazillion super short subs :thumbsup:
cometcatcher
28-06-2017, 06:34 PM
That's more the result I'd get if I shot it unfiltered. But I'd have to work harder to get a nice result as I get some LP here from a dozen close orange streetlights and the semi-apo filter kills them.
Thanks Andy. Blacks are not clipped on my monitor except for a tiny bit at the extreme left edge.
Lotsa subs work for me. Don't be surprised if I keep it up whenever I get an astro cam. Helps dodge the cloud and a bunch of other errors.
vBulletin® v3.8.7, Copyright ©2000-2025, vBulletin Solutions, Inc.