A high-school astronomy: in which the descriptive, physical, and practical are combined .. (1859)
Mattison, Hiram, 1811-1868 · New York, Mason brothers · leaf 145
elope. But these are very rareexceptions to the general charac-ter of cometary bodies. 299. The tails of comets areoften of enormous length andmagnitude. That of 371 beforeChrist was 60° long, covering one-third of the visibleheavens. In 1618, a comet appeared, which was 101°in length. Its tail had…
Astronomy
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