= Solar Spectrum =

|| XUV ||               ||
|| EUV ||  10nm - 115nm ||
|| FUV || 115nm - 180nm ||
|| MUV || 180nm - 310nm ||
|| NUV || 300nm - 400nm ||
|| VIS || 380nm - 740nm ||

 . {{ https://www.spacewx.com/images/Solar_spectrum_144px.jpg |  |  }}
  . https://www.spacewx.com/solar_spectrum.html

{{ attachment:thuill_astme590_lambda.png | | width=640 }} 
 . [[ https://www.astm.org/Standards/E490.htm | ''actually, ASTM E'''4'''90'' ]]

 . https://www.ngdc.noaa.gov/stp/solar/solaruv.html#S2000
 . https://www.sciencedirect.com/science/article/pii/S0273117705008288
 . https://en.wikipedia.org/wiki/Ultraviolet
 . https://en.wikipedia.org/wiki/Extreme_ultraviolet
 . [[ https://spacewx.com/ | Space Environment Technologies .com ]]
  . https://www.spacewx.com/solar_spectrum.html
 . https://www.ngdc.noaa.gov/stp/solar/solaruv.html
 . http://lasp.colorado.edu/home/sorce/data/ssi-data/
 . [[ https://www.sciencedirect.com/science/article/pii/S0273117705008288 | HEUVAC ]]
 . [[ https://doi.org/10.1029/2009JD012375 | Reconstruction of solar UV irradiance since 1974 (2009) ]]

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=== Chlorophyll ===

{{ attachment:ChlorophyllAB.png }}


[[ https://biology.stackexchange.com/questions/3905/does-the-light-color-spectrum-and-frequency-matter-for-photosynthesis | source ]]