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Blauvista

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Posts posted by Blauvista

  1. Following on from Stu's post , another image into the forum with an unusual colour palette.  Visualising the i´and z-s´photometric filters requires some creativity wrt to the entire colour palette - I chose the following approximate starting points:

    g´=> mid blue
    O-III => cyan
    Ha => yellow
    S-II => sunset orange
    i´=> crimson
    z-s´=> purple

    Stars are from the monochrome S-II integration.

    Calibration, Registration, Integration in APP, further processing to taste in PS.

    The viewing conditions were not as good as was hoped (Rhön, Germany) with intermittent thin cloud and dew that fell with a particularly heavy "thud" 😉 , still most of the data was usable ... 

    Total time: 11.5 hrs / ISO 400

    Celestron RASA11
    10Micron GM1000 HPS
    SIGMA fp L (monochrome)
    Baader ultra-fast narrowband and SLOAN/SDSS photometric filters

    Now that an ASCOM driver is available for the SIGMA fp L this was my first time in the field with NINA / Hocus Focus to focus the RASA - very pleased with how well that went (and how much time it saved vs. my older manual methods) 

    Here the result:

    Cave_Mark_SEP23-Hydrogen-alpha-session_1-lpc-St_crop_W1366.thumb.jpg.329d45b1c31fdead0473422f3925bd78.jpg

    Clear Skies! Mark

     

    • Like 1
  2. I think the more appropriate question, is which one you prefer 😃 ... Both versions have their merits - I think if you blended both versions, each person here would give a different answer as to what % mix they personally prefer.  I like the "hard" version a lot, though  the "softer" version shows there is more detail to be had in the rim than the "hard" version shows.  I think i would go for an 80/20 blend in the direction of the hard version - but that's a very personal thing ... if it was my data, I would look to add a second panel below the first at some point in the future, when I had a "spare" night (as if there were such a thing) - a touch of icing on the cake as it were ...

    • Like 1
  3. Very nice results - both the close-up and widefield view - I am always amazed what a RASA will pick-up if you put it under a relatively dark sky ...  and you are right, NGC2179 is a very nice little nebula.  Is the TEC140 data narrowband or RGB?

    • Like 1
  4. First post here, "Hi" to all, with a "counter season" post for the northern hemisphere ...

    The main background structures are from a the Ha integration.  The red highlights are also from the Ha data.  The yellow highlights from SII data. Stars from the Ha integration. Calibration, registration, integration in APP, further processing to taste in PS.

    Ca. 9 hrs total
    Celestron RASA 11
    10 Micron GM1000 HPS
    SIGMA fp L (monochrome)
    Baader Ha/SII ultra-highspeed narrowband filters

    A work in progress with the aim of adding more panels on all four sides including some additional filters ... 

    I've rebuilt the camera train on the RASA 11 (twice) since this data was collected (Winter 22/23) and a couple of panels will need to be reshot.

    100% View (16100 x 14000px)

    Thanks for taking the time, Mark

    M42_IC434_Mosaic_V4_crop_W1000.jpg.1b1718c645b4815099fa93476acb7bed.jpg

     

     

    • Like 21
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