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NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Halley's Comet heading to Chicago 
Name: Megan McCormack
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Question:
When is the next time and how often does Haley's Comet pass over Chicago?


Replies:
Halley's Comet (note spelling) has a period of 76 years. It last appeared in 1986. Hopefully, when it "passes over" Chicago, it will also pass over the rest of the Earth.

By the way, the pronunciation of Sir Edmund Halley's last name is the same as mine: the "a" is pronounced as in "hall" although for many years it was common to hear it pronounced as in "hail".

Hawley

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