Messier 4: Amateur Image vs. Hubble Image
Messier 4 (M4) is a globular star cluster located some 5,500 light-years away in the constellation Scorpius. 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: ESA/Hubble & NASA
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https://science.nasa.gov/image-detail/amf-b04ca63b-ffce-416b-810b-33b1b9139050/
Image CreditAmateur Image: Photographed by and used with permission of K. Hartnett; Hubble Image: ESA/Hubble & NASA
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