- Object: M57 Ring Nebula (PN)
- Date: 2015. 04. 26 (Luminance)
2015. 05. 17. (Hα)
2015. 08. 05. ([O III])
- Location: 대전 갑천변
- 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 6
Hα (FWHM 5nm) 1200sec x 9
Total 5 hours
- Calibration: Bias, Dark, & Flat
장초점인데도 아주 멋드러집니다...