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LYRA (" The Harp ")

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Originally appearing in Volume V17, Page 177 of the 1911 Encyclopedia Britannica.
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See also:

LYRA (" The See also:Harp ") , in See also:astronomy, a See also:constellation in the See also:northern hemisphere, mentioned by See also:Eudoxus (4th See also:century B.C.) and See also:Aratus (3rd century B.C.). See also:Ptolemy catalogued 10 stars in this constellation; Tycho See also:Brahe 11 and See also:Hevelius 17. a Lyrae or See also:Vega, is the second brightest See also:star in the northern hemisphere, and notable for the whiteness of its See also:light, which is about See also:loo times that of the See also:sun. The name " vega " is a remnant of an Arabic phrase meaning " falling See also:eagle," " Altair," or a Aquilae, is the similar remnant of " flying eagle." e Lyrae is a multiple star, separated by the naked See also:eye or by a small See also:telescope into two stars; these are each resolved into two stars by a 3" telescope, while a more powerful See also:instrument (4") reveals three smaller stars between the two pairs. i3 Lyrae and R. Lyrae are See also:short See also:period variables. There is the famous See also:ring or See also:annular nebula, M. 57 Lyrae, in the See also:middle of which is a very faint star, which is readily revealed by See also:photography; and also the meteoric swarm named the Lyrids, which appear in See also:April and have their radiant in this constellation (see See also:METEOR).

End of Article: LYRA (" The Harp ")

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