Astronomy for the use of schools and academies (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908, Rolfe, W. J. (William James), 1827-1910 · New York : Potter, Ainsworth, & Co. · leaf 383
Fig. 410. Fig. 411. Fig. 411 shows a quadruple star in Taicrus. Fig. 412shows a sextuple star, and Fig. 413 a septuple star. Fig.414 shows the celebrated septuple star in Orion, calledTheta Orionis, or the trapezium of Orion. ASTRONOMY. 357 349. Optically Double and Multiple Stars. — Two ormore…
Astronomy
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