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Skipper Billy

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Posts posted by Skipper Billy

  1. My humble effort!! 95% in Pixinsight - 5% in Photoshop

    Processed the Ha and Lum data to completion individually

    Blended the Ha and Lum images in Pixelmath - several different % blends until I was happy.

    DBE

    From this point on treated the Ha/Lum as the Lum layer

    RGB had DBE on each

    Channel Combination

    DBE

    Background Neutralisation

    Histogram Transformation

    Curves to create punchy colours

    Very gentle Convolution to smooth what little noise there was

    Star Alignment

    LRGB Combination

    Dynamic Crop

    DBE

    TGV Denoise

    Very gentle Morphological Transformation

    Unsharp Mask

    SCNR

    Curves

    Fixed minor blotches of colour noise.

    Slightly reduced largest stars in Photoshop using layers and eraser

    High Pass filter in Photoshop

    Minor tweaking in Photoshop using Camera Raw Filter

    Back to Pixinsight - blended 5% Ha with 95% of above image in Pixelmath to add definition.

    Final tweaks in Curves and Colour saturation

    Saved as TIFF and JPEG

    Enjoyed a wee dramย ๐Ÿ˜‰ย 

    M33 finished.jpg

    M33 finished.tif

    • Like 6
  2. I use an Intel NUC velcroed to a mounting plate fastened to the top dovetail.

    Its an i5 with 16gb Ram - SSD - windows 10 - fanless and extra USB ports added by changing the lid. Works superbly and is more than powerful enough to run everything as well as run Pixinsight concurrently so I can download a stacked image etc

    Very light and runs happily on 12v.

    It is linked to the indoor PC via Windows RDP - again flawless. I have also used it via wifi (not so flawless!)

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    IMG-1219.thumb.JPG.f5d1e3ec2f7315a51a464d76f123d12f.jpg.570d5ced162b29d9cef5fcdafe8583c6.jpg

  3. As a retailer (nothing to do with astro) we are facing two issues - UK (non) supply chain - take International Paints for example - spring time - people ready to get their boats sorted out for the season - International have virtually nothing on their shelves - many of the workforce were furloughed and therefore not making paints - how can they or we trade our way out of this mess if nobody has any stock of anything??? Secondly - stuff that comes from outside the UK - aside from China a lot of boaty stuff comes from Sweden, Germany, Italy and Greece - the few that will still ship to the UK have pit their prices up through the roof - a windlass that used to be about ยฃ700 at cost is now over ยฃ1000.

    I feel for anyone in retail just now unless they are selling masks, sanitizer or work from home gear. I fear we will all have to get used to earning less due to tax increases and paying more for almost everything.

    • Like 5
  4. The Horsehead Nebula and Flame Nebula (Barnard 33 and NGC2024) - 7 hours of Ha data gathered on 12th Feb. and 40 mins each of RGB binned 2x2 under terrible conditions - (full moon and wispy high cloud) on 1st March. Nearly didn't bother processing it but the quality of the HA data hides the poor quality of the RGB.

    235135221_LRGBPROCESSED.thumb.jpg.02a22e6e8d77f2d0255efa2b0209d947.jpg

    • Like 15
  5. 4 hours ago, Carbon Brush said:

    Over and out..ย  ย  :)

    Point of order - its either 'over' OR 'out' it cannot ever be both.ย ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ˜ƒ๐Ÿ™ƒ

    'Over' means over to you.

    'Out' means conversation end.

    As a mariner it annoys me to hear that phrase in films etc

    ย 

    • Like 4
    • Thanks 1
    • Haha 1
  6. Processed almost entirely in Pixinsight.

    Stretched individual channels to non-linear

    Linear fit Ha and OIII to SII channel

    Chanel combination using SHO (Hubble pallet)

    Dynamic Background extraction

    Starnet++ to remove stars - from here on the processes are mostly to the nebula sans stars

    Boosted Reds and Yellows in Curves transformation

    Hit it hard with SCNR

    Inverted the image and hit it with SCNR to remove Magenta

    TGV Denoise very gently - there wasn't much noise.

    Adjusted curves to correct colours

    Processed stars with Multiscale median transform to reduce the size slightly

    Adjusted star colour in Curves transformation

    Adjusted star brightness in Histogram transformation.

    In Photoshop pasted the star layer onto the nebula layer at 95% 'lightness' then back to Pixinsight

    Masked the big bright star and reduced it as far as possible whilst still leaving it big and bright - which it is!

    Final tweaks in curves and Histogram Transformation

    Saved as TIFF and Jpeg.

    Full res TIFF below.

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    SHO PROCESSED.jpg

    SHO PROCESSED.tif

    • Like 11
  7. M42 and NGC1977 - The Orion Nebula and the Running Man Nebula. Imaged 10th Feb 2021. 3 hours Luminance in 600 second subs binned 1x1. 45 mins each of RGB in 120 second subs binned 2x2. 4" frac and Atik mono camera. Processed in Pixinsight with a full set of flats, darks and bias.

    Orion Nebula

    ย 

    • Like 27
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