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      Dataset:
      NGC 1999

      NGC 1999 — Who Holds the Key to Orion’s Heart?

      0
      Bob Meincke

      Keyhole Nebula

      0
      David Tonucci

      NGC 1999

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      Peter LeFebvre

      NGC 1999

      0
      Tony Knepp

      NGC 1999 HaLRGB

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      Jeff Horn

      NGC 1999: A key-shaped gateway through the cosmos

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      Jared Greer

      The Cosmic Keyhole NGC1999

      1
      Steve Teel

      NGC 1999

      0
      Bernard Miller