Trifid & Lagoon: M8, M20
Trifid Nebula: M20 (left) and Lagoon Nebula: M8 (right). M21 also can be seen.
2017-04-23, Hongcheon, Korea
- CCD: SBIG STF-8300M (-20°C)
- Telescope: Takahashi FS-60CB w/ Flattener (d=60mm, fl=374mm)
- Filter: Baader Ha, L, R, G, B
- Mount: iOptron CEM25P, QHY5L-II, PHD2 autoguided
- Exposure
- Ha: 300s * 2
- L: 300s * 6
- R: 300s * 2
- G: 300s * 2
- B: 300s * 2
(Total integration 4200s / 70min)
- Processing: MaxIm DL 6, PixInsight, Adobe Photoshop CC 2017