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

C2 band
subject			fact

C2 band	is a kind of molecular band
	has species C2 radical
spectral feature	has wavelength
	has width
	occurs in
radiation measurement	has unit radiation unit
number	has value

Kinds of C2 band :

• Ballik-Ramsay band (2 facts)
• Phillips band (2 facts)
• Swan band (5 facts) - A C2 band which passes through a minimum between spectral types R4 and R6 and increase again toward N6.