Whirlpool Galaxy, M51

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Imaging information

Optics: Takahashi BRC250, PentaxMS5 mount

Camera: SBIG ST-2000XM, Astronomik Type2C LRGB filter

Exposure: L=10minx10, RGB=10minx2

Software: Stellaimage5, PhotoshopCS

Location: Ichikawa town, Hyogo Prefecture, 2006

published in Gekkan-Tenmon magazine