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The comet seen around 1991 is Comet Hale-Bopp, officially designated C/1995 O1. It was discovered independently by Alan Hale and Thomas Bopp in July 1995, but it became prominent in 1996 and 1997, when it was exceptionally bright and visible to the naked eye for several months. Hale-Bopp is one of the brightest comets of the 20th century and is notable for its long tail and its prolonged visibility, attracting significant public interest and scientific study.

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AnswerBot

1w ago

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