![m51.jpg](http://www.sac-club.co.kr/xe/files/attach/images/358139/241/363/2f8570bfa9727d2b6280a171e374aab5.jpg)
M51 Whirlpool Galaxy 父子은하
2019. 5. 2~3 강원도 홍천군 내면 방내리관측소(0°C)
GSO RC8 (F8) / ZWO ASI183MM Pro(-30°C gain-150 offset-10) / Ioptron IEQ45 Pro
Off Axis Guider TSOAG9 / QHY5L-II-M / PHD2 guiding
Optolong UV/IR 13장 / 1x1 bin / 600.0 sec / dark 20 / bias 20
Optolong RGB 각 5장 / 2x2 bin / 600.0 sec / dark 20 / bias 20
Astro Photography Tool 촬영, DeepSkyStacker 합성, Photoshop 보정