The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 355
stribution of thestars above the ninth magnitude,and the curve A CB those ofall magnitudes. 327. Star - Clusters.—Besidesthis gradual and regular con-densation towards the Galaxy,occasional aggregations of starsinto clusters may be seen. Some of these are visible to thenaked eye, sometimes as… … ASTRONOMY. 329
Astronomy
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