Assertion: nebula's material | /r/HasProperty | illuminated in planetary nebulae
Facets:
Source sentences:
text: In the planetary nebulae (PNe) phase, the ejected material is illuminated and can be altered by the UV radiation from the central star.
text: In the planetary nebulae (PNe) phase, the ejected material is illuminated and can be altered by the UV radiation from the central star.