Last night started out looking quite poor with a reasonable amount of high clouds floating through. I couldn't knock back a half decent night so this was the result. Guiding was not as good as I had hoped for but I think it may have been a balance problem after working on the mount during the day.
The image is of M20.
7 X 10 minutes Luminance binned 1x1
5 X 10 minutes each RGB binned 2x2
Captured with QHY9 and QHY LRGB filters
Telescope: GSO RC8" at F8
Nice image Doug. The red part of the Trifid looks great and you captured the large extent of the blue reflection neb but it doesn't look very blue.
Perhaps curves on the blue channel will bring it up as the image overall may be skewed a bit too much to the red and a tad too much to the green and not enough to blue.
I don't think the star shapes affect the image that much.
I imaged this on the weekend in widefield with the Televue and was amazed at the amount of golden background stars surrounding it once you get away from the opaque'r part of the neb (should've expected it knowing where it is I suppose).
Nice image Doug. The red part of the Trifid looks great and you captured the large extent of the blue reflection neb but it doesn't look very blue.
Perhaps curves on the blue channel will bring it up as the image overall may be skewed a bit too much to the red and a tad too much to the green and not enough to blue.
I don't think the star shapes affect the image that much.
Greg.
Thanks Greg I will have a look at that and see what I can do. I had really expected a bit more of the blue for the overall exposure time.
Quote:
Originally Posted by Bolts_Tweed
Nice stuff Doug. Nice detail especially.
I imaged this on the weekend in widefield with the Televue and was amazed at the amount of golden background stars surrounding it once you get away from the opaque'r part of the neb (should've expected it knowing where it is I suppose).
You've captured it well mate - congratulations
Mark
Thanks Mark, The golden stars do make it a very pretty nebula indeed.
Hi Doug! Good detail for sure, and good colours! Love those GSO's and the 8300 chip.
Thanks Gray, They do seem to work well together. The CCD size fits the 2" focuser and baffle tube without vignetting, can't say the same for bigger CCD's
Doug I reckon somewhere between the two is the right balance. I like the blue of the one on the right and the deep red of the one on the left. This is a target I want to re-image with the QSI. It begs long exposure time I think. Although the bright star on the upper right can be troublesome.
The stars is my only real criticism. Stars have been my bug bare too. I know how frustrating getting stars round is when imaging in longer focal lengths.
I reckon one more decent crack at this and you will have it nailed.
Agree with Greg, though, would look much better if you can tease the blues out. : )
H
Thanks Mate, It is so hard to know which way to go with the processing. I will give it another try and see what I end up with.
Quote:
Originally Posted by CoolhandJo
Great shot! The colours are rich and the detail is good. Lovely to look at.
Thanks Paul, it's all a big learning game and I feel I am starting to get the feel of it.
Quote:
Originally Posted by Paul Haese
Doug I reckon somewhere between the two is the right balance. I like the blue of the one on the right and the deep red of the one on the left. This is a target I want to re-image with the QSI. It begs long exposure time I think. Although the bright star on the upper right can be troublesome.
The stars is my only real criticism. Stars have been my bug bare too. I know how frustrating getting stars round is when imaging in longer focal lengths.
I reckon one more decent crack at this and you will have it nailed.
Stars! I am starting to hate them, at least when you add a bit of focal length to the equation. I will give this another go when it sits on the opposite side of the meridian. Maybe even get a bit longer exposure next time.
Thanks Paul
Quote:
Originally Posted by multiweb
Plenty of neb in there. I agree with Paul. 50% blend in between the two and you got a neat shot.
Thanks Marc, I will give it a go when I free up the laptop with the files on it. At the moment it is busy building a dark library.
nice work doug.. M20 is a lovely object to work with. somewhere in the fainter outer parts of this there is i think even supposed to be some green. quite deep to get that though i think? otherwise i agree with most of the other comments too.
and one day you'll have to tell me what drove you back towards mono imaging
nice work doug.. M20 is a lovely object to work with. somewhere in the fainter outer parts of this there is i think even supposed to be some green. quite deep to get that though i think? otherwise i agree with most of the other comments too.
and one day you'll have to tell me what drove you back towards mono imaging
phil
Thanks Phil, More exposure may show this up but quite a bit more would be required I think. I have returned to Mono by popular demand. It seems to be almost the standard for imaging, at least very deep resolution. I decided I would give it a serious attemp this time and with the aquisition of software like CCDStack and of course learning how to use it I don't find the processing quite as demanding as I originally found.
I have now sold my OSC and now purchased another mono camera so there is no going back.
Thanks Trevor but I think it still needs some work and some more exposure but it ain't going to happen. I have a new camera that I need to come to grips with.
