450P/LONEOS

Author(s): DaveBowman2001

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450P/LONEOS is a 7-km wide periodic comet with a 22-year orbit around the Sun (as of 2022). Discovered in 2004, it was formerly a centaur until a close encounter with Saturn in 1992 significantly decreased its semi-major axis by 5.2 AU, which began its transition into a Jupiter-family comet in the next few centuries.

Close encounter with Saturn in 1992

The orbits of 450P/LONEOS from 1900 until 2100. Current position (as of 2025) marked in green

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