태양과 태양 흑점 (2011. 09. 30.)

바람이 강하게 부는 날이라 촬영 조건은 좋지 않았지만, 흑점이 많이 있어서 촬영...

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Date : 2011. 09. 30. 05:30 (UT)
Object : Sun & Sunspot
Location : Daejeon
Camera : Canon EOS 5D Mark II digital camera
Telescope : Zeiss 150mm refractor (D=150mm, f=1200mm)
Focal Length : 1200mm (Digital conversion : 1200mm)
F ratio : 8
Filter : Baader Herschel Prisma
Exposure : 1/5000 s
ISO : 100
Photographic Method : Direct ( or Prime Focus)
Photographer : B. S. Yeom
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