Orbiting Telescopes Scan Ultraviolet Wavelengths
MAR 01, 1969
DOI: 10.1063/1.3035469
Ultraviolet data from 300 stars, twice what had been collected in the previous 15 years, is being radioed back to ground stations every day by the Orbiting Astronomical Observatory, OAO‐II, which began observations 11 Dec.
© 1969. American Institute of Physics
