Assertion: celestial sphere's star | /r/HasProperty | one hour of ra
Facets:
Source sentences:
text: For two stars one hour of RA apart, you will see one star cross your meridian one hour of time before the other.
text: The lines of RA all converge at the celestial poles so two stars one hour of RA apart will not necessarily be 15 degrees in angular separation on the sky (only if they are on the celestial equator