Word: coronas
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Dates: during 1970-1979
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During the 3 minutes of the eclipse's totality, Jay M. Pasachoff 63, research associate in Astrophysics, will photograph the spectrum of the sun's corona-the shifting white halo of ionized gases that extends millions of miles from the sun's surface. These visible light spectra will provide a detailed picture of the chemical and physical events in the corna...
Winfield W. Salisbury, lecturer inAstronomy, will also study how the corona's light waves are oriented or polarized. The corona's polarization can reveal how the sun's magnetic field changes through space...
...Harvard College Observatory's Orbiting Solar Observatory VI (OSO-VI) will take simultaneous ultra-violet observations of the sun's visible disc and corona during the rocket launch...
...heavily populated area of the U.S. in this century, local amateur astronomers plan to congregate on Nantucket Island. The moon will cover all but 2 per cent of sun in Boston, but that 2 per cent of sunlight will be enough to drown out the sun's faint corona...
...second experiment involves the use of four special television cameras to measure the intensity of polarization of the outer corona in various colors. The third experiment is a repeat of photography carried out for the Harvard astronomers at the 1968 eclipse in Siberia. Pictures of the eclipse will be taken through polarized filters at different angles with a specially designed telescope...