Assertion: star's rate | /r/HasProperty | 50per year or 1°
Facets:
value: in 72 years
type: TEMPORAL
Source sentences:
text: He found that between Hipparchus's time and his own (about 265 years), the stars had moved 2°40', or 1° in 100 years (36" per year; the rate accepted today is about 50" per year or 1° in 72 years).