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      NGC 6514 / M20 - Trifid Nebula, 3rd (and last) take, more classic look
      Wallpaper author:
      Lachezar Vladikov

      21 Jul 2023

      NGC 6514 / M20 - Trifid Nebula, 3rd (and last) take, more classic look

      This is my third (and last) take on the M20, giving it the more classic, 'fireball in flight' look :) of the Trifid Nebula. All vertical and horizontal corrections are in place, and the outer edges which weren't aligned were cropped out. Colors have been enhanced, and the core is still smooth.

      It's only as much as we can do with a single observation where the SNR is a bit lower compared to a full bundle, which I hope we'll get later in the year on TL.

      I've totally enjoyed working on the M20, in all three different approaches I've taken since last night. By the time I finish writing this, it might be full 24h since I started aligning/merging the FITs in PixInsight, with few different palette output options, which I've processed and given final touches to today.

      The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region in the north-west of Sagittarius in a star-forming region in the Milky Way's Scutum-Centaurus Arm. It was discovered by Charles Messier on June 5, 1764. Its name means 'three-lobe'. The object is an unusual combination of an open cluster of stars, an emission nebula (the relatively dense, reddish-pink portion), a reflection nebula (the mainly NNE blue portion), and a dark nebula (the apparent 'gaps' in the former that cause the trifurcated appearance, also designated Barnard 85) [Wiki]

      Dataset from which the image was processed

      M20

      3 credit

      Open
      Telescope Live
      CHI-1-CMOS
      • Type of target
        ............................................................................................................................
        Emission Nebula
      • Camera
        ............................................................................................................................
        QHY 600M
      • Target coordinates
        ............................................................................................................................
        RA 270.6038 Dec -23.0018
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Chile
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        16 Jun 2023 - 25 Oct 2023
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Halpha10002h30m9
      Blue20030m9
      Luminance10015m9
      Red10015m9
      Green10015m9

      NGC 6514 / M20 - Trifid Nebula, 3rd (and last) take, more classic look