Assertion: dumbbell nebula | /r/CapableOf | stretch across 15 arcminutes
Facets:
value: at its faintest extensions
type: MANNER
Source sentences:
text: Stretching across 15 arcminutes at its faintest extensions, the Dumbbell Nebula is the second largest planetary nebula known, smaller in size only than the famous Helix Nebula (NGC 7293), located in Aquarius constellation.