Sharpless, Isaac, 1848-1920, Philips, G. M. (George Morris), 1851-1920, joint author · Philadelphia, J.B. Lippincott company · leaf 194
Fig. 43.—Telescopic Comet Fig. 44.—Telescopic Comet without a Nucleus. with a Nucleus. side. This tail nearly always points away from the sun.The smaller comets, such as can be seen only with atelescope, frequently have no tail at all, being simply 190 ASTRONOMY. round masses of hazy light, either…
Astronomy
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