OBSERVING The Ring Nebula and I go way back. The brightest parts are two evenly spaced, parallel bands of nebulosity stretching through the dark center along the Ring's major axis. Not One but Two Stars The very hot white dwarf (120,000 kelvin) at the center of the Ring is responsible for ionizing the surrounding nebula. Northwest of the white dwarf a magnitude-16.2 star that's unrelated to M57 peeps through the Ring's dark center. [Extracted from the article]
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