Hudrogen Lines net A … os TRO x Bete SSR ES SS % t (db) Prate XJ-—SECCHI’S! SPECTRAL, TYPES, Tait Spectrum of Titanium Oxide; Spectrum of Orion Nebula. Bright lines in (6) Flash Spectrum of the Sun, almost totally eclipsed, and corresponding (a) dark lines five seconds earlier [To face page 135
Astronomy
Internet Archive · Gerstein - University of Toronto · Public domain (published before 1931). Free to use for anything.
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