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NGC7635 & M52

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NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by Friedrich Wilhelm Herschel

Photo Details

  Telescope: FSQ106EDX (530 mm) Takahashi

  Camera: Sbig ST-2000XM, Sbig Filter wheel, Baader 1.25" HLRGB filters

  Mount: NJP Takahashi

  Guiding: Self-guided

  Exposure: HaRGB 6.5h total, Ha

  When: ----

  Other information: good transparency, good seeing

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