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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > spectral line > absorption line > Fraunhofer line > HK lines > Ca H line |
Ca H line | ||||
subject | fact |
Ca H line | has wavelength 3968 Å | |
has definition A spectral line of singly ionized calcium. | ||
is a kind of HK lines | ||
HK lines | has species Ca II | |
Fraunhofer line | has dicovery date 1814 | |
has discoverer Joseph Fraunhofer | ||
occurs in Sun | ||
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 |