날씨가 애매해서 여러날에 찍은거 합쳐 올려봅니다. 찍은건 3일인데 하루는 완전 망쳤고, 2일치 자료 합쳤습니다.
HOO imaging of NGC281
- R : H-alpha 100%
- G : O3 80% + H-alpha 20%
- B : O3 70% + H-alpha 30%
# Date : 2019/08/02(O3), 2019/08/31(H-alpha) (Hongchun, South Korea)
# Equipment
- Mount : Homemade Equator (Strain wave reduction gear, http://www.nightsky.kr/xe/Info/5240 )
- Telescope : Newtonian 10inch (F3.6 with 3inch Coma corrector)
- Camera : QHYCCD 695a with Astrodon H-alpha, O3 filters
# Exposure : H-alpha 300sec x 16, O3 300Sec x 12
# Processing : Pixinsight, Photoshop
