Howe, Herbert A. (Herbert Alonzo), 1858-1926 · Meadville, Penna., Flood and Vincent · leaf 322
d bytens or hundreds of thousands are known as clusters.Several of the stars in the cluster of the Pleiades can beseen with the naked eye, and many more are broughtout by an opera-glass. Praesepe in Cancer and the variations. Clusters. The Fixed Stars. 315 double cluster in Perseus look like bright… … Fig. 137.—The Great Globular Cluster in Hercules. where to look for it can see it as a hazy faint star. Alarge telescope is needed to resolve the entire clusterinto separate stars. It is globular in form, and near itscenter the stars appear fairly to touch one another ; atthe edge the stars are…
Astronomy
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