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 385
358 ASTRONOMY. star is combined with a blue one. Other colors found ircombination in these systems are red and blue, orange andgreen, blue and green, yellow and blue, yellow and red, etc.If these double and multiple stars are accompanied b\ … Fig. 415. planets, these planets will sometimes have two or more sunsin the sky at once. On alternate days they may have sunsof different colors, and perhaps on the same day twosuns of different colors. The effect of these changingcolored lights on the landscape must be very remarkable. New and…
Astronomy
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