Quote from Dreyer's New General Catalog (NGC):
"Pretty bright, pretty large, extended 50°, 2 stars westward."
NGC 6643 is a Spiral Galaxy in the constellation of Draco. It has a very small nucleus separated from the broken remnants of an inner ring that extends into a complex, irregular spiral pattern. Bright knots that are probably H-II regions outline the multiple spiral arms. Based upon published red-shift data, a rough distance estimate for NGC 6643 is 78 million light years. At that distance the diameter would be 86,300 light years.
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George Normandin, KAS
October 22nd, 2002