Assertion: nebula's star | /r/HasProperty | young
Facets:
Source sentences:
text: The star is so young that it is still surrounded by a cloud of material left over from its formation, here seen as the NGC 1999 reflection nebula.
text: About 45 variable stars of the T Tauri type,[note 9] young stars still in the process of formation, as well as some 17 Herbig–
text: Formed in a cold cloud of gas and dust, the nebula contains about 1,000 young stars, which illuminate the cloud, creating the beautiful swirls of material seen in infrared.