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      IC 4685 (Version 2)
      Autore dello sfondo:
      Beatrice Heinze

      16 Dec 2025

      IC 4685 (Version 2)

      IC 4685, is a beautiful emission and reflection nebula in the constellation Sagittarius, located close to the more famous M8 Lagoon Nebula.


      This is my first attempt at processing this object, and I really enjoyed it. The dark nebulae in it also make this object fascinating.


      I processed this nebula in SHO, the Hubble Palette.


      Here is a second version in which I applied SCNR to remove even more green from the photo than in my previous version. I don't like to use too much SCNR, because I find that it often overcorrects the photo.


      My workflow consisted of: Automatic DBE (Seti Astro), Russell Croman's three tools: BlurXTerminator, StarXTerminator, and NoiseXTerminator. After that, I also used GHS, NarrowbandNormalization, and SelectiveColorCorrection (Jürgen Terpe), SCNR (Green -> Amount 0.50), among others.

      Dataset da cui è stata elaborata l'immagine

      IC 4685

      3 credit

      Apri
      Telescope Live
      CHI-1-CMOS
      • Tipo di obiettivo
        ............................................................................................................................
        Reflection Nebula
      • Fotocamera
        ............................................................................................................................
        QHY 600M
      • Coordinate dell'obiettivo
        ............................................................................................................................
        RA 272.4042 Dec -24.0414
      • Emisfero
        ............................................................................................................................
        Southern
      • Posizione del telescopio
        ............................................................................................................................
        Chile
      • Evento transitorio
        ............................................................................................................................
        No
      • Osservato il
        ............................................................................................................................
        01 Sept 2023 - 14 Oct 2023
      Filtro
      Exp. media (s)
      Esposizione totale
      Sottoframe
      Halpha2811h15m16
      SII2811h15m16
      OIII3401h25m15

      IC 4685 (Version 2)