The heavens above: a popular handbook of astronomy (1882)
Gillet, J. A. (Joseph Anthony), 1837-1908 · New York, Chicago, Potter, Ainsworth, & Co. · leaf 404
sion it produces, which is that ofa translucent object illuminated by a brilliant light behindit. With a smalltelescope it is easyto imagine it to bea solid like horn;but with a large onethe effect is morelike fog or mist witha bright body in itsmidst. Unlike mostof the nebulae, itsspectrum is a…
Astronomy
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