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Name: Heather Skeba
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Date: 1993 - 1999
Question:
When will we see {the earth} Haleys Comet again?

Replies:
Halley's Comet appeared 7 or 8 years ago and has a period of 67 years, so it won't reappear for another 60 years.

Sorry...

OOPS, I misremembered the period: it varies from 74 to 78 years, so the average is about 76 years. The reason for the variation is unpredictable interactions with the gas giants, mostly Jupiter.

John Hawley


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