21P/Giacobini–Zinner comet

21P/Giacobini–Zinner is passing by the Sun in Sep 2018.

2018-09-08 (KST, GMT+9:00), Hwacheon, Korea

• CCD: QHYCCD QHY16200A (-20°C)
• Telescope: Takahashi FSQ-106ED (d=106mm, fl=530mm, f/5.0)
• Filter: L, R, G, B
• Mount: CRUX-170HD with Titan TCS, QHYOAG-M+QHY5L-II, PHD2 autoguided
• Exposure
  • L: 180s * 1
  • R: 180s * 1
  • G: 180s * 1
  • B: 180s * 1
    (Total integration 12min)
• Processing: PixInsight 1.8.5, Adobe Photoshop CC 2017