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Left: amateur image, right: Hubble image of Messier 51, which appears as a majestic, face-on spiral galaxy.

Messier 51: Amateur Image vs. Hubble Image

Messier 51 (M51) is a spiral galaxy better known as the Whirlpool Galaxy. It is located some 31 million light-years away in the constellation Canes Venatici. The left image was taken with an 8-inch Schmidt-Cassegrain telescope using a 0.63x focal reducer and a DSLR Camera. The right image was taken by NASA’s Hubble Space Telescope.

Image Credit: Amateur Image: Photographed by and used with permission of K. Hartnett; Hubble Image: NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA)
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