What are "never rise stars"?

"Never rise stars" refers to stars that are always below the horizon from a specific observer's location. This phenomenon occurs because the stars in question are situated in such a way that they are positioned close to the celestial poles and do not reach or cross the horizon for the observer, meaning they are never visible throughout the year.

This concept is particularly relevant for observers located at high latitudes, where certain stars can remain perpetually hidden due to the curvature of the Earth. As such, the classification of "never rise stars" is tied to their inability to rise above the horizon due to the observer's geographical position.