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

B band
subject			fact

B band	has wavelength 7100 Å
	has definition Telluric lines due to O2 absorption in Earth's atmosphere, but originally thought to originate in the Sun by Fraunhofer.
	occurs in Earth's atmosphere
	is a kind of molecular band
	is a kind of Fraunhofer line
	has species O2
Fraunhofer line	has dicovery date 1814
	has discoverer Joseph Fraunhofer
absorption line	has antonym emission line
spectral line	has transition
	has equivalent width
spectral feature	has width
radiation measurement	has unit radiation unit
number	has value