The call of the stars; a popular introduction to a knowledge of the starry skies with their romance and legend (1919)
Kippax, John R. (John Robert), 1849-1922 · New York, London, G. P. Putnam's sons · leaf 138
It is alwaysa naked-eye object, and its variations are readily recog-nisable. It is an easy double in a two-inch instrument,and a triple star in a three-inch. It was discovered tobe a variable star by Goodricke in 1784, and belongs tothat type in which the mutually eclipsing bodies are un-equal and… … Mount Wilson Solar Observatory Plate VII. Ring Nebula in Lyra
Stars · Constellations · Planets
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