Limiting
Cases
–At the Earth’s north pole, looking overhead all stars
appear to circle around the
north celestial pole.
–At the equator:
•Stars on the celestial equator rise in the east, move
overhead, then set in the
west
•The N and S celestial poles are just on your N and S
horizons, and stars near those
points still circle around them. But
those stars are only visible
for the upper half of their circles.
From Voyages
through the Universe, by Fraknoi et al.