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Left: amateur image, right: Hubble image of the globular cluster Messier 15. The amateur image reveals a sphere of stars with a bright-white center. The Hubble image shows a sphere of stars in colors of orange, blue, yellow, and white. The cluster's core is also bright white , but Hubble reveals individual stars instead of a uniform white glow.

Messier 15: Amateur Image vs. Hubble Image

Messier 15 (M15) is a globular star cluster located some 33,600 light-years away in the constellation Pegasus. M15 is host to an intermediate-mass black hole at its core. 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
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Image CreditAmateur Image: Photographed by and used with permission of K. Hartnett; Hubble Image: NASA, ESA
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