Noel reprocessed the Veil nebula data making the stars less obtrusive and sharpening up the nebulosity a little to emphasize the filaments. It’s a personal choice as to which version you prefer – I like the down-played stars myself.Sky 90, SXVF-M25C, Veil Nebula
Archive for the “Veil Nebula” Category
Mar 18 2008
Today is a landmark day for the New Forest Observatory. After a marathon processing session involving a lot of blood, sweat, tears, and a hallucination-inducing lack of sleep – Noel Carboni has just finished processing the Summer 2007 mega-project, the Veil nebula in Cygnus!
Read the rest of this entry » Tags: Sky 90, SXVF-M25C
The last few days Noel has been working right through the night to get the images sorted for Star Vistas. As I write this, Noel is working on the mammoth Veil Nebula data set. In a previous post you can see the upper region of the Veil, and Noel just sent me a “taster” of the lower Veil region. This is going to be a classic! Keep viewing this site – it will be posted soon 🙂
Sep 08 2007
The last RGB image of the Veil nebula has been significantly improved by adding some H-alpha and some OIII narrowband data as can be seen in the accompanying image.
However, the project has turned into an even bigger undertaking.
I decided that I needed to get the nebulosity south of this region, so I embarked on a full two-frame Sky 90/M25C mosaic to capture the whole of the Veil complex. I now only need the RGB data of the southern region (H-alpha and OIII already taken) in order to have an extremely deep and detailed image of the whole of the Veil.
The statistics make frightening reading. So far I have taken 142 sub-exposures amounting to 27 hours total imaging time and a 1.7 GB file size. The addition of the final RGB data is likely to take this project to over 30 hours total imaging time with a file size in excess of 2 GB.
I am not sure I will undertake such a mammoth task again without the aid of the mini-WASP array!
The original image is on the left and the improved images (with H-alpha and OIII narrowband data) is on the right:
Sky 90, SXVF-M25C, Veil Nebula
Aug 31 2007
For me, the imaging object of Summer 2007 has been the Veil Nebula region in Cygnus. This is to-date the greatest amount of data taken by me on one object, during one period – ever. I’m not too sure I’ll be doing this again 🙂
This image comprises over 17 hours of total exposure time including 3 and a half hours of narrow band H-alpha data. Over 8 hours of Hyperstar data for the Witch’s Broom region was also included in this image [these 8 hours were extra to the 17 hours taken on the Sky 90/M25C].
Processing time more than equaled imaging time on this one and Noel excelled himself here managing to squeeze out the very last traces of the Veil amidst a mass of overpowering stars – and quite a lot of Moon glow!
Why is the project only 90% complete?
I have only just ordered an OIII filter [from Ian King imaging] to try and boost the blue/green regions you can see in the image. If I can add this data in before the Veil moves into an unfavorable region of the sky [only a week or two away now] then I may finish this mega-project off this year.Sky 90, SXVF-M25C
Jan 11 2007
I’m thinking ahead about the deep-sky object that I will concentrate on for the short summer nights. I am really impressed with the image of the Veil nebula on Davide de Martin’s Skyfactory site where he has processed this superb image using Palomar POSS II data.
I think I’d really like to give this one a good try, however that field of view (FOV) of 4.2 x 4.4 degrees would mean a 2-frame mosaic with the Sky 90/M25C combination, and I’m not too happy about spending that much time on just one object, especially with short evenings.
However, Steve Cannistra has also imaged the Veil region with a set up that has a very similar field of view to mine and although it doesn’t get the whole of the region in the frame, it still makes a very impressive image.
Taking all things into account, I will try to get a very deep single-frame image of the veil region using the one-shot camera and the usual Hutech IDAS light pollution filter.
I know from the previous work I carried out on the Witch’s Broom region of the veil with the Sky 90/SXV-H9C combination that the one-shot is fine for this purpose.
The only thing that I don’t know is how good (or not) the one-shot will be at picking up the faint stuff between the Eastern and Western veil regions. I guess the only way to find out will be to image the thing this summer 🙂
I’m going to be posting more about the Veil Nebula project and you can follow my progress in the Veil Nebula Category or by clicking on the links below [which also happen to be from the Veil Nebula category]:
The diagram from Cartes du Ciel will give you an indication of where the Veil Nebula is in the night sky:
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