astroenthusiast 279 Posted May 16, 2021 A closer look at the center of Messier 57, you see the remains of the star that blew away it's outer layers, leaving a hot core at the center known as a white dwarf. Image captured on 05/15/2021 at 3:10 am ET, using 2 hours exposure time with a CMOS one shot color camera with a temperature of - 25 Celsius. The telescope used was a 102 mm APO Triplet refractor at F/7. Link to comment
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