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I revisited this after a week break, also managed to get significantly more imaging time in last Monday and Tuesday nights
I got a lot of great advice from my original post,
I used a new tool as I couldn't get GradX to work effectively on the high gradients I get from light pollution in my location so I downloaded AstroFlat Pro plugin for PS http://www.prodigitalsoftware.com/AstroFlatPro1_News.html
AstroFlat Pro worked really well on L, mergedRGB and Ha removing gradient that was on my original post
So below is the result of a lot more data and different processing, I tried two different methods to add in Ha, one replacing the RED channel with a mix of R + Ha and one that put the Ha as a RED channel layer
Below is a Ha included as Red channel layer with a Lighten blend (http://bf-astro.com/tutorial/addHa.htm)
L - 1.5hr , R,G,B 1hr each, Ha (7nm) - 2.5hr
L,R,G,B taken in 30s subs, Ha in 60s subs
The resulting image seems quite a 'warm' , so I don't think I have got the Ha blend on red channel quite right yet, image is cropped as I didnt quite match the framing across my sessions,
Appreciate comments and advice
The Pelican Nebula is one of my favourite objects although it is often overshadowed by its big neighbour, The North America Nebula. The skies didn't play ball with this one so it took several evenings over a protracted period of time to capture any meaningful data. What I particularly wanted to accentuate in this image was the dust. I have always loved the dust apparently 'falling' from the area where M42 and M43 'touch' and was keen to get a similar affect here with this object. Working with just bi-colour data introduced some challenges but in the end, I did get an image that reflected what I was looking for.
The Pelican Nebula is situated to the north-west of the North America Nebula, 2 degrees east south-east of the bright star Deneb in Cygnus. The region is alive with star-birth and evolving gas clouds. As well as the gas and dust, there was another feature that I hoped to probe and that is the Herbig-Haro jets (designated HH-555) emanating from the top of the dust and gas pillar on the 'neck' region of the nebula. These jets indicate the presence of an unseen proto-star and they are indeed visible in this image.
Mount: Mesu 200
Telescope: William optics FLT98
Reducer: William Optics FR IV
Camera: QSI 683 WSG-8
Guiding: SX LodeStar
Filters: Baader 7nm Ha and 8.5mm OIII
Subframes: 20 x 600 sec Ha, 37 x mix of 900 and 1200 sec OIII
Control: CCD Commander
Capture: MaxIm DL
Post-Processing: MaxIm DL and PS3
I have just acquired a new (used) telescope (many thanks PhotoGav), A Skywatcher Evostar 80ED DS-Pro and I have decided to step up my image processing a notch and have had my first try with PixInsight 1.8.
7+ hours of data over 4 nights with good conditions and a lot of learning have resulted what I would call my first WOW! image. Feeling very proud of this one. Done in narrowband using the Hubble Space Telescope Palette (SII= Red, Hα = Green, OIII = Blue)
For more detail the astrobin link is: http://www.astrobin.com/271584/
By Adam J
Ok....ill start by admitting that I thought I was imaging the North American Nebula but missed and never noticed it was the Pelican until the processing.
4 x 10min, ISO 800 frames, no bias, no flats, no darks. Canon 1000D cooled to -4c at the camera sensor using my home made DSLR cooler box, CLS clip in filter. 130P-DS with a MPCC MK3.
This was first light for my cooled camera and had some teething issues so only for 4 frames before it got light. I am am thinking its quite good considering but not much to reference that against. Also pleased by the noise reduction, not sure darks are required?
Would love any comments on how I could better process it etc, as I am still quite new to astro-photography and only really have CS2.
I didn't think I'd ever see such a thing - a full Moon and cloud sweeping in! No, I tell you, it really did happen last night .......... So, my 20 subframe session on the Pelican Nebula turned into a misty 8 subframes before all the stars disappeared from view under heavy clouds. Worse was to come, image 6 was also totally clouded out leaving me with just 7 x 600 sec. Ha sub-frames to work with.
On the plus side, my new focusing system worked flawlessly
Camera: QSI 683 WSG-8
Filter: Baader Ha 8nm
Telescope: William Optics FLT98 with WO FR IV reducer/flattener
Mount: Mesu 200
Session Control: CCD Commander
Stacked with MaxIM DL and finished in PhotoShop PS3
IC 5070 The Pelican Nebula