Flammarion, Camille, 1842-1925, Lockyer, Winifred James, Mrs., d. 1879 · New York, C. Scribner & co. · leaf 34
hich itwill meet goes on increasing. The maximum will be at thevery centre. It was this optical effect which induced thebelief in a condensation of nebulous matter. Halley dis-covered this cluster in 1679, w^hilst he was working at thecatalogue of objects visible in the Southern heavens. General… … Fig. 3 —Gi bular C ust i^,. Of these star-clusters tiie first are certainly spherical;others elongated, the thickness of which we see graduallydiminished. These are probably also circular, but flattened 24 Marvels of ihe Heavens. in the form of lenses ; instead of being presented to us in frontthey…
Astronomy
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