KnowraHalley's CometLinked fromLinked fromThe 7 pages that link to Halley's Comet, each with the reason it gives.All 7Broader topic 6Related 1CometBroader topic: Its repeated returns made it central to recognizing that comets can follow predictable orbits.Orbital periodBroader topic: Its long, eccentric orbit gives it a period far longer than a planet's.Charles MessierBroader topic: Its predicted 1758 return drew Messier into comet searching and astronomy.Edmond HalleyBroader topic: Halley identified its 1531, 1607, and 1682 appearances as returns of one comet.Chinese astronomyBroader topic: Chinese records of its apparitions help trace the comet’s long observational history.PerihelionBroader topic: Its close solar passage at perihelion drives heating and the release of gas and dust.Solar radiation pressureRelated: Radiation pressure helps shape the motion and distribution of its dust.