M51


This was taken on the 8th of April on a hazy night, as part of a series of tests with the new Vixen VMC260L and 900GTO mount. The telescope has a focal length of 3000mm and I added a .5 focal reducer to bring it down to 1500mm. Acquisition and pre-processing, average stacking, were done in AstroArt and final processing was in Photoshop CS2. The exposure was 45x60sec and unguided. The camera used was an SX M25C with an IDAS LPS filter. Very heavy with noise, which more time would help solve, but that wasn't the purpose of the tests.

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