spicae definition of spicae in the Free Online Encyclopedia.

Spica (spī`kə), brightest star in the constellation Virgo Virgo (vûr`gō) [Lat.,=the virgin], constellation lying on the ecliptic (the sun's apparent path through the heavens) between Libra
..... Click the link for more information. ; Bayer designation Alpha Virginis; 1992 position R.A. 13^h24.8^m, Dec. −11°07'. A bluish-white star of spectral class spectral class, in astronomy, a classification of the stars by their spectrum and luminosity . In 1885, E. C. Pickering began the first extensive attempt to classify the stars spectroscopically.
..... Click the link for more information. B1 V, its apparent magnitude magnitude, in astronomy, measure of the brightness of a star or other celestial object. The stars cataloged by Ptolemy (2d cent. A.D.), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the
..... Click the link for more information. averages about 0.96, making it one of the 20 brightest stars in the sky. Because it is an eclipsing binary star binary star or binary system, pair of stars that are held together by their mutual gravitational attraction and revolve about their common center of mass.
..... Click the link for more information. , the magnitude ranges from 0.91 to 1.01 as the two components orbit about each other within a four-day period. Spica is at a distance of about 200 light-years. Its name is Latin for "ear of grain," referring to an ear of grain held by the figure traditionally associated with the constellation Virgo.

Spica (redirected from spicae)

Spica
(redirected from spicae)