Milkyway:
M51 whirlpool galaxy 5 and 6 June 2010
C8 at F10, SBIG ST-4000XCM -15C 1h25min (17x300sec). Poor conditions: sligth bluish sky, windy, drifting clouds.
Light travel time: 37 million years.
Processing: CCDOps, ImageJ, Irfanview adjustments.
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