astroenthusiast 279 Posted June 26, 2022 The Ring Nebula is the left over of a Sol-type star also designated Messier 57. In the center of M57 is a dot, the remains of one sun-like star, but all that remains is a hot stellar core, known as a white dwarf. The Ring Nebula is located approximately two thousand light-years from Earth and is in the constellation Lyra. The optical system used was a TPO 304mm Ritchey Chretien astrograph, and ASI2600mm Pro monochrome camera at a temperature of -16 Celsius. The filters used was LRGB & Hydrogen Alpha, with an exposure time of 6-hours. 1 Link to comment
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