110P/Hartley

Author(s): DaveBowman2001

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110P/Hartley, also known as Hartley 3, is a 4.6-km periodic comet with a current orbital period of 6.84 years. It primarily orbits the Sun within the main asteroid belt, with occassional close encounters with Jupiter slightly changing its orbit over time

The orbits of 110P/Hartley from 1900 to 2200, with its current position (as of 2025) marked in green.

110P/Hartley photographed from the Zwicky Transient Facility on November 2021

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