Which comet did Halley compute the periodicity of?
Halley's Comet
Hyakutake Comet
Encke's Comet
Bopp's Comet
Answer
Halley's Comet, officially designated as 1P/Halley, is the comet whose periodicity was famously computed by Edmond Halley in the 17th century. With an orbital period of approximately 76 years, Halley's Comet appears in the inner solar system and can be observed from Earth on average every 76 years. Its most recent closest approach to Earth occurred in 1986, making it visible to skywatchers in the late 20th century.
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