Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  NGC 1788

Image of the day 03/20/2021

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    LBN 923 Region, NGC 1788 and vdB33, 


            Min Xie
      LBN 923 Region, NGC 1788 and vdB33, 


            Min Xie

      LBN 923 Region, NGC 1788 and vdB33

      Technical card

      Imaging telescopes or lenses: Takahashi FSQ-106EDX III  ·  Takahashi TOA-130NS

      Imaging cameras: ZWO ASI6200mm-Pro

      Mounts: Astro-Physics AP1100GTO-CP3

      Guiding telescopes or lenses: ZWO M68 OAG

      Guiding cameras: ZWO ASI174mm-Mini

      Software: Starkeeper.it Voyager Custom Array  ·  Adobe Lightroom Classic 2019  ·  Adobe Photoshop 2020  ·  Astro Pixel Processor  ·  PixInsight 1.8 Ripley

      Filters: Chroma 50mm Blue  ·  Chroma 50mm Green  ·  Chroma 50mm Red  ·  Chroma 50mm Luminance  ·  Chroma 50mm Ha 5nm

      Accessory: ZWO EFW 2" 7 Position  ·  ADM Accessories TGAD (Tandem Guiding Aiming Device)  ·  虫子 WormCover & WormFlatPanel  ·  ADM Accessories SBS Supporting System  ·  MoonLite NiteCrawler WR35 Focuser  ·  Kingdel NC860 (i7-8550U)

      Dates:Jan. 6, 2021Jan. 7, 2021Jan. 14, 2021Jan. 15, 2021Jan. 22, 2021Jan. 30, 2021Jan. 31, 2021Feb. 7, 2021

      Chroma 50mm Blue: 58x180" (gain: 0.00) -20C bin 1x1
      Chroma 50mm Green: 63x180" (gain: 0.00) -20C bin 1x1
      Chroma 50mm Ha 5nm: 72x600" (gain: 100.00) -20C bin 1x1
      Chroma 50mm Luminance: 156x180" (gain: 0.00) -20C bin 1x1
      Chroma 50mm Red: 65x180" (gain: 0.00) -20C bin 1x1

      Integration: 29.1 hours

      Darks: ~20

      Flats: ~20

      Bias: ~40

      Avg. Moon age: 14.66 days

      Avg. Moon phase: 46.06%

      Bortle Dark-Sky Scale: 2.00

      Mean SQM: 21.99

      Temperature: 8.12

      Basic astrometry details

      Astrometry.net job: 4301899

      RA center: 5h 5' 29"

      DEC center: -3° 38' 42"

      Pixel scale: 2.873 arcsec/pixel

      Orientation: 142.088 degrees

      Field radius: 1.226 degrees

      Resolution: 1699x2560

      Locations: Dark Sky New Mexico, Animas, New Mexico, United States

      Data source: Own remote observatory

      Remote source: Dark Sky New Mexico


      LBN 923 region is another fantastic target right outside Orion. It shows up in pretty much most of the wide-field images of IC2118 (just a little north to it). The whole region is filled with dust clouds and background H-II signals. I had this thing that I always want to blend the reflection and emission signals together - here it goes again.

      Jim Thommes' has a very nice page to give more details of this area: LBN 923 Region and vdB33.

      The weather of our remote observatory was far from optimal this winter. Not sure if it's the same case for everywhere in North America recently.