Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 50
te power the num-ber is increased to sixty orseventy. The cluster in Can-cer called Praesepe, and thecluster in Perseus, are barelyvisible with the naked eye,but when viewed with a tele-scope they are Shown to COn- Fig. 16. Cluster in Perseus. tain hundreds of closely com-pacted stars. The… … ASTRONOMY. object which is barely discernible with the naked eye, butwhich is shown in the telescope as a grand assemblage ofglittering stars. Its telescopic appearance is shown in Fig.17
Astronomy
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