Linked from
The 52 pages that link to Comet, each with the reason it gives.
Edmond HalleyNarrower topic: The object Halley tracked belongs to this broader class of icy bodies.
Halley's CometNarrower topic: Halley's Comet belongs to this class of icy bodies.
Comet Hale–BoppNarrower topic: Hale–Bopp’s coma and tails formed as sunlight heated its icy nucleus.
Comet HyakutakeNarrower topic: Hyakutake is one instance of this class of active icy bodies.
2060 ChironNarrower topic: Chiron links the study of centaurs to comet behavior and volatile loss.