Assertion: asterism | /r/HasProperty | useful
Facets:
value: for determining the faintest stars
type: PURPOSE
value: in a way
type: MANNER
Source sentences:
text: * useful in a way "asterism" is not, because its applicability is independent of scientific discoveries that may not yet have been made; in fact, it's a hypernym of "asterism" and "star cluster".
text: The asterism and its immediate surroundings are a useful gauge for determining the faintest stars visible in a small telescope as there are a wide range of stellar magnitudes within the cluster easily viewed in one small location of the sky.