Peck, William G. (William Guy), 1820-1892 · New York, Chicago, A. S. Barnes & company · leaf 51
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 … Fig. 17. Cluster in Hercules. In some regions of the heavens the stars, without beinggrouped in regular clusters, are so closely compacted thatfor every star visible to the naked eye there are hundredsthat are only discernible.with the telescope. Fig. 18 givesa telescopic view of a small portion of…
Astronomy
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