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M1(かに星雲) 45㎝反射 F/4 星像はボケ気味ですが、M1のフィラメントはIR改造カメラでもよく捉えられる。口径の威力だろう!
M1(Crab Nebula) 45mm Reflector F/4 The star image is blurry, but the filament of M1 is well captured by IR modified cameras. The power of the big telescope!
