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Pinwheel Galaxy M101
Pinwheel Galaxy M101
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Pinwheel Galaxy, M101
Messier101 is a face-on galaxy in the costellation Ursa Major. It's sit about 27million light-years away from earth. It was discovered by Mechain in 1781. M101 is larger than our Milkyway galaxy. It is about twice the size of the Milkway. I took this picture with Epsilon250. I borrowed this big telescope this spring so that I can took the galaxy in wide field.
Imaging information
Optics: Takahashi Epsilon250, PentaxMS-5 Mount
Camera: SBIG STL-11000M, Astronomik LRGB filter
Exposure: Luminance=120minutes, R=20min, G=20min, B=20min
Software: Stellaimage6, PhotoshopCS
Location: Hattouji Park, Okayama Prefecture, 2008