IC 434: Horsehead nebula

IC 434: Horsehead Nebula

IC 434, The Horsehead Nebula, is a horse-shaped dense molecular cloud (Barnard 33) blocking light from a bright emission nebula. A very prominent emission nebula called as Flame Nebula (NGC 2024) is at the left of the Horsehead Nebula.

2019-01-05 (KST, GMT +9:00): Jecheon, Korea

• CCD: QHYCCD QHY16200A (-20°C, ambient temperature: -10°C)
• Telescope: Takahashi FSQ-106ED (d=106mm, fl=530mm, f/5.0)
• Filter: L, R, G, B, Ha
• Mount: CRUX-170HD with Titan TCS, QHYOAG-M+QHY5L-II, PHD2 autoguided
• Exposure
  • L: 300s * 2
  • R: 300s * 2
  • G: 300s * 2
  • B: 300s * 3
  • Ha: 600s * 2
  • (Total integration 65min)
• Processing: PixInsight 1.8.6, Adobe Photoshop CC 2019