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        - Main camera: Apogee ALTA U16M (KAF16803) + Flattener 67 -> 1.68"/pix
        - Guiding camera: Atik 314L+
        - Filters: L-RGB-Ha-OIII-SII Astrodon Gen2
        - Refractor: TAKAHASHI TOA150 - Focal length 1100mm
        - Mount: mini-OHP with MCMT system
        - Dome: Scopedome 3m
        - Integrationn, pre-treatment and treatment: PRISM v9, IRIS and Photoshop
  Dark Tower Nebula in B&W
  Main object
SFO82Dark Tower
  Catalog    Sugitani, Fukui, Ogura
  Autres objets    - SFO 82 -
  Month    December
  Year    2017
  Constellation    Scorpius
  L    0
  RGB    0
  Ha    800 (13 hours and 20 minutes)
  O3    0
  S2    0
  Total    800 (13 hours and 20 minutes)
  Format    1x1
  Number    97
  Link    Full size picture
  Link    Labeled picture
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