<Annotated Image> <Ha vs. MasterL> 2018년 10월 12,13,19,20일 / 경북 영천 GSO 10'' RC carbon /c HD58RC reducer @ f6.4 (FL1600mm) Ha 1200s x 12 / L 900s x 16 / R 900s x 16 / G 900s x 12 / B 900s x 12, All Bin1 Total 1080min (18h) QHY16200a(-30도) Rainbowastro RST400 Equatorial Mount Off-axis guide / 1 sec normal speed / MaximDL multistar guide /c QHY178M bin2..
