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Астронет: Библиотека ГАИШ/Astronet К 90-летию Лео Голдберга http://variable-stars.ru/db/msg/1186117/methan.html |
К статье
"Telluric Bands of CH4 in the Solar Spectrum"
The 2
overtone band of CH4 at 1,665 
in the solar spectrum.
Zero intensity is represented by the horizontal line at the bottom of the tracing.