Star-land; being talks with young people about the wonders of the heavens (1899)
Ball, Robert Stawell, Sir, 1840- [from old catalog] · Boston and London, Ginn & company · leaf 295
earth in consequence of its collision with the cometof 1861. The tail of a comet appears to develop under theinfluence of the sun. As the wandering body approaches 282 STAR-LAND. the source of central heat it grows warm, and as it getscloser and closer to the sun, the fervor becomes greaterand… … How the Tail of a Comet arises. even driven off into vapor, under the intense heat towhich a comet is sometimes exposed. Comets, indeed,have been known to sweep round the sun so closely asto pass within a seventh part of its radius from thesurface. It seems that certain materials present in…
Astronomy
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