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How does Hale-Bopp compare intrinsically with other comets of the past?

April 26, 2017comets compare hale-bopp intrinsically past

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How does Hale-Bopp compare intrinsically with other comets of the past?

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Very favourably indeed. If Comet Hale-Bopp had passed as close as Comet Hyakutake did last year it would have been around magnitude -7 and perhaps the second or third brightest comet since the 17th century! Assuming a maximum magnitude of -1.0, the absolute magnitude of Comet Hale-Bopp was -1.3.