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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > spectral line > emission line > forbidden line > [O III] line > N1 line

N1 line
subject			fact

N1 line	has wavelength 5007 Å
	has definition Green forbidden line of doubly ionized oxygen.
	is an instance of [O III] line
	has species [O III]
forbidden line	has synonym nebular line
emission line	has antonym absorption line
spectral line	has transition
	has equivalent width
spectral feature	has width
	occurs in
radiation measurement	has unit radiation unit
number	has value