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Thread: M31 mosaic

  1. #1

    Default M31 mosaic

    Here's my fist real attempt at a mosaic, Captured it this weekend with ACP (of course). Just luminance so far. I plan to collect Ha and RGB as well.

    9 panels, each composed of 4 5 minute subs.

    Reduced in Maxim processed with PixInsight.

    http://lambda-conspiracy.net/pictures/astrophotography/

    -esy
    My punctuality is well known. When "The Revolution" takes place, I'll be late, and I'll be shot as a traitor.

  2. #2
    Join Date
    Nov 2008
    Location
    me: Albuquerque scope: Mayhill, NM
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    1,097

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    Let me be the lucky first to say: Very nice, very nice indeed.

    I too am starting with monochrome only (Luminance & occasionally H-alpha). Struck me as a sane, left-brain + right-brain way to get all the mechanical stuff ready and yet have many nice pix to show for progress.
    measuring space rock rotation rates, live from Albuquerque NM

  3. #3

    Default

    Thanks very much.

    I actually took luminance first as I wanted a framework for aligning, and I wasn't sure if my mosaic coordinates were right. I tried a couple times before until I realized that TheSky's reported PA was 270 degrees off from my plate-solved PA, so I ended up changing all the coordinates in the plan to match the mosaic in TheSky. I actually wasted a ton of time doing one pass over the whole mosaic at a time. I probably could have captured more data had I updated my plan after the first run... oh well, I guess next time I'll optimize the run a bit more...

    -esy
    My punctuality is well known. When "The Revolution" takes place, I'll be late, and I'll be shot as a traitor.

  4. #4
    Join Date
    Oct 2005
    Location
    Strongsville, OH
    Posts
    1,548

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    Hi Erik,

    Impressive result! I'm surprised at the depth of the image with only 20 minutes exposure. (Anything less than 4 hrs looks really thin for my setup.) You've either got 1) a really big scope, 2) really dark skys, a really sensitive camera, or plenty of skill!

    Very nice!

    Jim

  5. #5

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    Thanks Jim,

    Telescope is an f/7 111 mm triplet (Astro Technologies). Skies are my usual: pretty directly underneath the streetlamp in front of my house ! The camera is very good: an FLI Microline 8300.

    -esy
    My punctuality is well known. When "The Revolution" takes place, I'll be late, and I'll be shot as a traitor.

  6. #6
    Join Date
    Oct 2006
    Location
    Lisbon, Portugal
    Posts
    179

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    Impressive... add more time and colour and it go from impressive to absolutely amazing! Great job there...
    Regards,

    Jose Pedro Canela
    Lisbon, Portugal, Europe, Earth, Milky Way
    http://crow.josecanela.com

 

 

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