Assertion: celestial coordinate system | /r/CapableOf | divide the sky
Facets:
value: into two hemispheres
type: TRANSITIVE-OBJECT
Source sentences:
text: This celestial coordinate system divides the sky into two hemispheres: the upper hemisphere, where objects above the horizon are visible, and the lower hemisphere, where objects below the horizon cannot be seen, since the Earth obstructs views of them.