Astronomy, a handy manual for students and others (1918)
Dyson, Frank Watson, Sir, 1868-1939 · New York, E.P. Dutton & Co. · leaf 165
f a collection of solid and metallicbodies surrounded by gaseous hydrocarbons. The formation of the tail is very interesting. At aconsiderable distance from the Sun a comet is usuallya hazy, nebulous object. As it approaches the Sun 154 ASTRONOMY it brightens, the nucleus becomes more distinct,and… … Diag. LXXI.—Morehouses Comet, 1908. These tails are not straight, but are curved becausethe matter driven from the nucleus shares its orbitalmotion round the Sun. The curvature is shown inthe illustration of Donatis comet on p. 151. In recentyears very beautiful photographs have been takenwhich…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
