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CETUS (" The Whale ")

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Originally appearing in Volume V05, Page 776 of the 1911 Encyclopedia Britannica.
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CETUS (" The See also:Whale ") , in See also:astronomy, a See also:constellation of the See also:southern hemisphere, mentioned by See also:Eudoxus (4th See also:century n.c.) and See also:Aratus (3rd century B.C.), and fabled by the Greeks to be the See also:monster sent by See also:Neptune to devour See also:Andromeda, but which was slain by See also:Perseus. See also:Ptolemy catalogued 22 stars in this constellation; Tycho See also:Brahe, 21; and See also:Hevelius, 45. The most remarkable See also:star of this constellation is o-(Mira) Ceti, a See also:long-See also:period variable, discovered by the See also:German astronomer See also:Fabricius; its magnitude varies between about 3 to 9, and its period is 331 days. z-Ceti is an irregular variable, its extreme magnitudes being 5 and 7; .y-Ceti is a beautiful See also:double star, consisting of a yellow star of magnitude 3 and a See also:blue of magnitude 6.8; v-Ceti is also a double star.

End of Article: CETUS (" The Whale ")

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