A text-book of general astronomy : for colleges and scientific schools (1888)
Young, Charles A. (Charles Augustus), 1834-1908 · Boston ; London : Ginn & Company · leaf 501
re bright, a Hercules, a Orionis, and Mira (o Ceti) are fineexamples of this third class. 488 STAR SPECTRA. Thefowrth class is composed of a very small number of stars, lessthan sixty so far as now known, mostly small red stars. This spec-trum is also a banded one ; but compared with the third… … Fig. 223. — Secchis Types of Stellar Spectra. fifth magnitude. The sixth magnitude star, 152 Schjellerup, maybe taken as its finest example (a, 12h 39m; 8, +40° 9, in the constel-lation of Canes Venatici). Fig. 223 exhibits the light-curves ofthese four types of spectrum.1 858. Vogel has revised…
Astronomy
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