Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M51 the Whirlpool galaxy - 28 hours of exposure, Yuriy Mazur
M51 the Whirlpool galaxy - 28 hours of exposure
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M51 the Whirlpool galaxy - 28 hours of exposure

Equipment

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Acquisition details

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Description

More than 3700 short-exposure frames were stacked for L-channel. Most of them were taken in 2013 (about 18.5 hours of exposure), and the rest are taken in July,2015 - 3.5 hours. The exposure for RGB is 2 hours per channel. L-channel also contains RGB data to enhance SNR. The durations of individual frames are from 5s to 120s (bin1 and bin2)

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M51 the Whirlpool galaxy - 28 hours of exposure, Yuriy Mazur