Journal Notes
SEP 01, 1953
DOI: 10.1063/1.3061385
The Lyman‐alpha line has been detected for the first time in the solar spectrum according to a report in the July 15, 1953, issue of The Physical Review. A grating spectrograph was mounted in an Aerobee rocket, which then was flown to 81 km for the exposure. This was the only line observed in the far ultra‐violet, and its total intensity outside the earth’s atmosphere was estimated to be
© 1953. American Institute of Physics
