Spica


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Spica

(spī`kə), brightest star in the constellation VirgoVirgo
[Lat.,=the virgin], constellation lying on the ecliptic (the sun's apparent path through the heavens) between Libra and Leo, and SW of Boötes; it is one of the constellations of the zodiac.
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; Bayer designation Alpha Virginis; 1992 position R.A. 13h24.8m, Dec. −11°07'. A bluish-white star of spectral classspectral 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.
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 B1 V, its apparent magnitudemagnitude,
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 dimmest stars
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 averages about 0.96, making it one of the 20 brightest stars in the sky. Because it is an eclipsing binary starbinary star
or binary system,
pair of stars that are held together by their mutual gravitational attraction and revolve about their common center of mass. In 1650 Riccioli made the first binary system discovery, that of the middle star in the Big Dipper's handle, Zeta
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, 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

(spÿ -kă) (α Vir) A conspicuous blue-white star that is the brightest one in the constellation Virgo. It is an eclipsing binary, period 4.014 days, the primary (A) being a Beta Cephei star near to core hydrogen exhaustion. Spica, Denebola, Arcturus, and Cor Caroli form the quadrilateral shape of the Diamond of Virgo. mv : 0.98 (var.); Mv : –3.2; spectral type: B1 V; distance: 67 pc.

Spica

 

(α Virginis), a star of the first visual magnitude. The brightest star in the constellation Virgo, Spica has a luminosity 740 times greater than that of the sun. Spica is approximately 50 parsecs from the sun.

Spica

[′spī·kə]
(astronomy)
A blue-white dwarf star of stellar magnitude 1.0, 160 light-years from the sun, spectral classification B1-V, in the constellation Virgo; the star α Virginis.
References in periodicals archive ?
"Another great example is the practical tips on how to take care of a child in a Spica Cast to prevent skin breakdown and avoid soiling the cast during diaper changes," Smith said.
It also gives an indication of a safe position of immobilization in spica cast as the extension lag increases in frog leg position and in positions of forced internal rotation of femur (which have a higher incidence of AVN).
"I'm proud that Spica's civilian mariner and military team was able to assist this submariner.
''If you aim your binoculars at Spica then the comet will be in the upper left of your field of view."
The form sometimes known as English lavender, Lavandula x intermedia, is a cross between Lavandula spica and Lavandula latifolia, another species from the western Med.
French spirituality in the seventeenth century is discussed in emblematic contexts by both Anne-Elisabeth Spica and Agne's Guiderdoni Brusle.
NEW ORLEANS -- The Pavlik harness is as effective as spica casting in treating femoral shaft fractures in children younger than 1 year, Dr.
Navig8 Spica GAC 01/06/19 Not Sched 500 Chemical Nil
14 DAWN: Find the bedazzling pair of Venus, the Morning Star, and Spica, the brightest star In Virgo, In the east-southeast before sunrise.
Referring to his various albums, we chose seven stars - Sigma Librae, Spica, Alpha Virginis, Zeta Centauri, SAA 204 132, and the Beta Sigma Octantis Trianguli Australis - in the vicinity of Mars, Mollet said.
START.UP business Spica Technologies has been selected as a semi-fi-nalist in Cisco's BIG Awards 2015.