Assertion: nebula's light | /r/HasProperty | emitted by oxygen
Facets:
Source sentences:
text: The featured picture, taken in the light emitted by oxygen (shown in blue) and hydrogen (shown in red), was created from 74 hours of exposure over three months from a small telescope in a backyard of suburban Melbourne, Australia.
text: Color filters were used to sample light emitted by oxygen ([O III]) and hydrogen (H-alpha, H-beta).
text: The science team, composed of Farhad Yusef-Zadeh (Northwestern U.), John Biretta (STScI), Bob O'Dell (Vanderbilt U.), and Mark Wardle (Macquarie U.), took exposures in filters that transmit light emitted by oxygen, hydrogen, and sulfur ions.