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Thread: NGC7293-Helix Nebula-2 Panel Mosaic

  1. #1
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    NGC7293-Helix Nebula-2 Panel Mosaic

    I was able to finish this image this week i started it over a month ago thanks to the storms,rain,moon etc oh well. It's over 11hrs of data taken total for the two panels different gradients on different days i was able to get good enough data but not enough Ha. thanks for looking.

    BTW Any info on the galaxy top right below the blob (star) i tried to look it up no info?.

    Left a marker on top below text where the two meets. combined with photoshop cs3.
    Attached Images Attached Images

  2. #2
    Nice job on the mosaic.

    I just collected two frames for a mosaic subject, and am about to begin the processing. It appears to be more than X2 the difficulty.

    Robert

  3. #3
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    Thanks Robert, It will be awhile before i do this again, or use my refractor .

  4. #4
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    Beautiful Efraine, thank you my friend for sharing this.

    clear skies

    chrissy

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    Thanks Chrissy, No problem! .

  6. #6
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    Quote Originally Posted by JAICOA View Post
    I was able to finish this image this week i started it over a month ago thanks to the storms,rain,moon etc oh well. It's over 11hrs of data taken total for the two panels different gradients on different days i was able to get good enough data but not enough Ha. thanks for looking.

    BTW Any info on the galaxy top right below the blob (star) i tried to look it up no info?.
    Nice image! I always like a identification challange and I found the galaxy in the online SIMBAD catalogue by searching the vincinity of HD 213056 (the blob-star - identified using CdC). It's 2MASX J22290968-2047179 and you can view it online.

    Patrik

  7. #7
    Excellent mosaic Efrain! The color is good and the detail as well. That galaxy is in the reference photo in The Sky, but no identifier. Patrik probably found it though.

  8. #8
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    Thanks Patrik, For the info even for a popular image like the helix it doesn't show much info of it or a close-up image of it. Again thanks guys.

    Thanks Andy, And for looking it up. Clear Skies
    Last edited by JAICOA; 2008-Nov-20 at 07:12 PM.

  9. #9
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    Quote Originally Posted by JAICOA View Post
    Thanks Patrik, For the info even for a popular image like the helix it doesn't show much info of it or a clos-up image of it. Again thanks guys.
    Well it is really tiny, even Hubble doesn't get much detail, but Covington found a little more information.

    Patrik

  10. #10
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    Thanks again Patrik, He himself ask the same question on this mag 16 galaxy.

  11. #11
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    That came out well. I don't see the seam at all.

    SIMBAD's link to ALADIN is the best way to ID these galaxies. That will bring up a POSS image of the area with each object SIMBAD knows about marked with a symbol. Clicking on that will ID the object. SIMBAD is a bit weak when it comes to galaxys however and misses some NED knows about. But if you don't have software to determine the exact position of the object, the Aladin image will also give you the position of the cursor so you can get the coordinates of the galaxy then try NED using the near position fuction.

    If you do have the software to analyze your own images and have many that SIMBAD couldn't find, use NED to give you a printout of the objects within the FOV of your image. It can be long so only check the types of objects you can image. No use looking for IR, Xray and Ultraviolet objects for instance. Often I just check galaxies and groups and clusters of galaxies leaving the rest blank. Armed with that printout it is quick to check those positions on my image and ID those still unknown. Unfortunately many will still remain unidentified even some surprisingly bright ones. If they didn't meet the criteria for some catalog they just seem to become the "Rodney Dangerfield" of galaxies and get no respect.

    I've never been able to process a mosaic that came close to matching. I can take both halves the same night the same way, combine them and then process but each comes out very differently even though they were taken and processed exactly the same. Color, background, contrast always come out different. Guess my sky is just too changeable even in the short run. Nor are my processing abilities up to it yet.

    Rick
    Last edited by RickJ; 2008-Nov-20 at 06:16 AM. Reason: fixed typos

  12. #12
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    Thanks Rick, It was a major task combining them I was about to put it in the back burner for next year adding more data in the Ha band. Thanks for the great info too.
    Clear Skies

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