Word: clusters
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Dates: during 1930-1939
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...possible key to the mysteries of intergalactic space lies in the recent discovery of a globular cluster, a unified system containing tens of thousands of stars, at problaby an enormous distance from the Milky Way plane...
...This cluster may be one of the exceedingly few objects known to lie between the galaxies. It is located six degrees from the South Pole of the sky in the constellation of Menss...
...left as he sat was a small basin, fenced off from the harbor by the breakwater. Within the basin lay a cluster of boats, launched even earlier than his own. On one a group of riggers was working; the mast had been set in from a high derrick on the dock and now one deck-hand was perched in the spreaders trying to un foul a tangle of lines, looking like a bird in a wintry tree. Soon his won craft--that little white creature nestling in the cradle on the shore--would slip down the rails that led into...
...conjectures advanced as to the probable nature of the cluster, Shapley said the evidence so far favors the assumption that the stars may have an absolute magnitude of -1.5, comparable to that of the brightest stars in the globular star clusters. If that is the case, it can be definitely established only when variable stars have been found in the group, then the cluster would be about 250,000 light years from the earth, and would measure about 6,500 light years in diameter...
...assumptions, however, the Sculptor cluster is sufficiently different from any other known star systems to warrant the belief that it represents a hitherto undisclosed classification, Dr. Shapley said...