Word: perihelion
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Dates: during 1940-1949
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Since that evening last November, Friend's comet-of the seventh magnitude, just beyond naked eye visibility-has followed its looping course to perihelion (closest approach to the sun) and is zooming toward the outer reaches of the solar system. This week, as the comet emerges from behind the sun, South African astronomers who are on their toes may get a brief look-probably the last look from the earth...