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      LDN 939
      Wallpaper author:
      Michelle Ashford

      05 Nov 2026

      LDN 939

      LDN 939 is a cold, dark molecular dust cloud located in the constellation Cygnus. In this FOV there are so many interesting astrophysical objects (beyond LDN 939) that it would be difficult to mention them all. However, a few worth mentioning:

      Sh2-112, Sh2-115, Sh2-116 (previously categorised as a Planetary Nebula Abell 71), are faint emission nebulae, consisting of extensive clouds hydrogen gas ionised by the intense radiation emitted by young massive stars.

      PK 086+05.1, also referenced as Weinberger 1-10 is a genuine Planetary, a very faint blue bubble to the right of the image. Another very faint Planetary (PK 083+05.1) is referenced below SH2-116, middle left of the image.

      There are also many LBN and LDN objects in this image, it is really interesting to check out this region further.

      Pixinsight, Blur Exterminator, Affinity, Star Exterminator, Topaz De-Noise/Sharpen

      Dataset from which the image was processed

      LDN 939

      8 credit

      Open
      Telescope Live
      SPA-1-CCD
      • Type of target
        ............................................................................................................................
        Emission Nebula
      • Camera
        ............................................................................................................................
        FLI PL16083
      • Target coordinates
        ............................................................................................................................
        RA 307.7667 Dec 47.66
      • Hemisphere
        ............................................................................................................................
        Northern
      • Telescope location
        ............................................................................................................................
        Spain
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        11 Jul 2022 - 07 Nov 2022
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Halpha6003h40m22
      OIII6003h40m22
      SII6003h40m22

      LDN 939