- Object: M27 Dumbbell Nebula (PN)
- Date: 2015. 05. 21. (Hα)
2015. 07. 16. ([O III], Hα)
- Location: Daejeon, South Korea
- Telescope: Mewlon-210 + Mewlon FL/RD (x0.8) (Focal Length = 1,932mm)
- Mount: EM200 Temma2M
- Detector: QSI583wsg
- Guiding Camera: Lodestar X2
- Passbands: [O III] (FWHM 5nm) 1200sec x 8
Hα (FWHM 5nm) 1200sec x 6
Total 4.7 hours
- Color Mixing: OIII=Blue, OIII(85%)+Hα(15%)=Green, Hα=Red
- Calibration: Bias, Dark, & Flat