Imaging Date: January 31th, 2022
February 5th, 2022
March 27th, 2022
April 3rd, 2022
Imaging Site: NADA Observatory,Korea
Telescope: 15 inch Newtonian reflector with Wynne Corrector
Mount: AP EQ1200GTO
Guiding: Off axis guide with ASI174mm
Imaging Camera: L-ASI6200MM (-20C)
RGB-QHY16200A (-30C)
Imaging Software: Camera Add On
Exposure: L 300sec X 17 (2X2), 180sec X 36 (2X2)
RGB 450sec X 38 (1X1)
LRGB combine (Total exposure 7hrs 58min)
Processing Notes : CCDStack2 + PixInsight1.8 + PhotoshopCC
CCD 로 촬영한 RBG 이미지에 CMOS 로 촬영한 L 이미지를 서로 합성했습니다.
각각의 장단점을 알수 있는 작업이었는데,CCD가 사장되어가는게 안타깝습니다.
NGC4631 - Whale Galaxy
Hickson44
