This one was taken on Friday night which is the night which had the better seeing of the 2 nights. Stars were only slightly twinkling down low
on the horizon.
Another fabulous southern object. Not too many examples of this one on the net. It is a cometary globule.
The stars are pinpoint to a tea....and there's so much emission neb' in the area that you've picked up. I really like the way it frames the dark neb' there, it's a great contrast
I like the crop too, but the wide field view puts the tower in its context
The stars are pinpoint to a tea....and there's so much emission neb' in the area that you've picked up. I really like the way it frames the dark neb' there, it's a great contrast
I like the crop too, but the wide field view puts the tower in its context
Thanks Carl.
I had some trouble with the processing as the red histogram is massive compared to the green and blue. Earlier versions were too red so I hope I got it balanced.
Very nice indeed Greg! Like the colour. Have you thought about toning down the star brilliance a bit (curves / star size reduction) to highlight the the neb better?
Cheers, Marcus
Edit: Reduced star billiance EG attached (quick & dirty) ...
Last edited by marc4darkskies; 18-08-2009 at 02:31 PM.
Reason: Edit: Added reduced star brilliance example
not too bad at all, brighter in the nebulosity than what ive seen previously(only seen a couple). 3 images in as many days, where do you find the clear skies ? . Not here thats for sure !!!!!!
Very nice indeed Greg! Like the colour. Have you thought about toning down the star brilliance a bit (curves / star size reduction) to highlight the the neb better?
Cheers, Marcus
Edit: Reduced star billiance EG attached (quick & dirty) ...
Thanks Marcus. Good advice. I reduced the stars as much as I could and reduced a bit of red oversaturation in some stars. It does highlight the neb more. Star reduction is tricky work and easily overdone as it leaves artifacts pretty easily but they did reduce a bit.
Quote:
Originally Posted by Alchemy
not too bad at all, brighter in the nebulosity than what ive seen previously(only seen a couple). 3 images in as many days, where do you find the clear skies ? . Not here thats for sure !!!!!!
The BRC is 250mm aperture and F5 so it gets a bright image pretty quickly which is one of the main reasons I chose it. With winter nights being 9 hours long - 7pm to 6am at the moment you can get 2 or 3 images done if they are in the right position in the sky.
Sweet Greg, very sharp and a huge dynamic range. Unusual view too, nice change.
Thanks Fred. I have wanted to image this for a while but wasn't sure how it would turn out as I thought it was only dust but it has emission nebula there as well.
I much prefer the wide field Greg and it is here that the BRC shines. The star images produced by the BRC just don't hold up under enlargement. The scope it is designed for big film sheets or big chips. The thick diffraction spikes, square stars and reflection halos around brighter stars are just too over powering in my opinion if you try and crop and enlarge.
Nice job, making the stars les massive would be good although I don't like what Marcus did to it sorry Marcus
I much prefer the wide field Greg and it is here that the BRC shines. The star images produced by the BRC just don't hold up under enlargement. The scope it is designed for big film sheets or big chips. The thick diffraction spikes, square stars and reflection halos around brighter stars are just too over powering in my opinion if you try and crop and enlarge.
Nice job, making the stars les massive would be good although I don't like what Marcus did to it sorry Marcus
The set-up is to die for too
Mike
Hi Mike,
Yes I think you are right. This is the big edge refractors have or larger aperture mirrored scopes. Getting the stars right. The BRC is very practical at F5 getting a bright image quickly and its quite compact and stays out of the wind. Handy when imaging out in the field when you travel you need to get that image before clouds or heavy wind starts up.
I picked up a Paramount ME recently but that is for a new observatory yet to be built once I move in Nov. The NJP stays at the dark site though.
Another corker. I'm just amazed how well the stars are resolved. There are bigger ones, medium sizes but still all the tiny ones in the gaps are there - pinpoint. Top shot again.
Another corker. I'm just amazed how well the stars are resolved. There are bigger ones, medium sizes but still all the tiny ones in the gaps are there - pinpoint. Top shot again.
Thanks Marc.
One of the specs for the BRC is star size on axis is as low as 2 microns in size which is extremely low for any scope.
Yes I think you are right. This is the big edge refractors have or larger aperture mirrored scopes. Getting the stars right. The BRC is very practical at F5 getting a bright image quickly and its quite compact and stays out of the wind. Handy when imaging out in the field when you travel you need to get that image before clouds or heavy wind starts up.
I picked up a Paramount ME recently but that is for a new observatory yet to be built once I move in Nov. The NJP stays at the dark site though.
Greg.
Yes I'm well aware of the attraction of a fast corrected telescope!!!!! ASA? ....where?
You got a PME huh? and a new observatory is coming...of course you need two observatories, of course .. way to go, I can only imagine what Mr Telescopes will get to put on that PME
Yes I'm well aware of the attraction of a fast corrected telescope!!!!! ASA? ....where?
There's always Orion Optics UK APM America is an agent for them and he wouldn't tolerate bad scopes.
You got a PME huh? and a new observatory is coming...of course you need two observatories, of course .. way to go, I can only imagine what Mr Telescopes will get to put on that PME
I have 2 observatories now but I never use my home backyard one as I am spoilt by pristine skies. I intend to use what I have for a while but I have my eye on a Planewave CDK 17 inch except nobody seems to post images from them which puts me off. I don't want to be a beta tester!
I have to concur with Mike's comments. The stars just overwhelm this image, but I understand the challenge of getting them just right.
You are also right about the Planewave CDK.....tough to find images. Its outside of the mainstream telescope lines and while I have not investigated it thoroughly, I do not see a TCC comparable item to control secondary temperature, fans, and focus. I thought you sold your RC?
sorry Marcus 
....where? 
and a new observatory is coming...of course you need two observatories, of course 
.. way to go, I can only imagine what Mr Telescopes will get to put on that PME 
APM America is an agent for them and he wouldn't tolerate bad scopes.
