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abstraction > mathematical concept > number > quantity > radiation measurement > spectral feature > set of lines |
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set of lines | ||||
subject | fact |
set of lines | has definition A set of absorption or emission lines in the spectra of a celestial object | ![]() |
is a kind of spectral feature | ![]() | |
spectral feature | has wavelength | ![]() |
has width | ![]() | |
occurs in | ![]() | |
has species | ![]() | |
radiation measurement | has unit radiation unit | ![]() |
number | has value | ![]() |
Kinds of set of lines :