Assertion: supernova's progenitor | /r/HasAspect | temperature
Facets:
value: between 3,500k
type: LOCATION
Source sentences:
text: The observed progenitors of type II-P supernovae all have temperatures between 3,500K and 4,400K and luminosities between 20,000 L ☉ and 200,000 L ☉ .