Linked from
The 12 pages that link to Circumpolar star, each with the reason it gives.
PolarisNarrower topic: Polaris appears circumpolar throughout most of the Northern Hemisphere.
Altitude (astronomy)Broader topic: Its altitude varies through the night but remains above zero.
CruxRelated: Crux stays visible through the night and year from many southern latitudes.
Celestial poleRelated: Its visibility depends on the pole’s altitude and the observer’s latitude.