White Light Coronagraph in OSO-7

Applied Optics
M J KoomenR Tousey

Abstract

A small, externally occulted Lyot-type coronagraph, designed for use in the seventh unmanned Orbiting Solar Observatory (OSO-7), is described. Optical configuration, suppression of stray light, SEC vidicon detector, and data system are discussed, as well as integration of the instrument into the spacecraft and operation in orbit. Orbital operation produced daily images of the white light corona, from 2.8 to 10 solar radii, at least once per day for 2(3/4) yr. The first records of white light coronal transient events were obtained, and the corona was shown to be constantly changing.

References

Dec 1, 1948·Journal of the Optical Society of America·J W EVANS
Dec 1, 1967·Applied Optics·R Tousey
Jun 1, 1968·Applied Optics·R M Macqueen

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Citations

Dec 24, 2011·Applied Optics·Federico LandiniSilvano Fineschi
Apr 1, 1977·Applied Optics·R Tousey
Nov 13, 2015·Applied Optics·Russell A Howard
Mar 1, 1976·Applied Optics·C Kunze, H Samuelsson
Nov 13, 2015·Applied Optics·Craig HoffmanLeo B Slater
Feb 26, 1982·Science·D J MichelsM J Koomen

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