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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > set of lines > set of molecular lines > molecular band > C2 band > Swan band

Swan band comparison table

Subject	has discoverer	has discovery date	has definition	occurs in	is a kind of
C2 band					molecular band
Swan band	W. Swan	1856	A C2 band which passes through a minimum between spectral types R4 and R6 and increase again toward N6.	carbon star	C2 band

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