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 ?
The Spica barcode scanner SDK and application for Windows OS based platform is readily available for evaluation.
Caption: Figure 4 AP radiograph of the right hip at 5 weeks following spica cast placement.
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.
Based on their success with Spica, Procyon conducted an analysis to determine the key competitors in B2B preference mapping.
Dazu procentuotes buvo pasirinktos atsizvelgiant i gaminamos produkcijos stebejimus ir ivertinus ofsetines spaudos masinos "KOMORI SPICA 29P" technines galimybes.
Lisa's family suffered another trauma when her 38-year-old sister Annmarie's baby daughter, Millie, then 18 months old, fractured her femur and had to be placed in a hip spica cast.
JG) Aldebaran Kari (Fletcher) Imperatore and SB3 Tristan Spica Fletcher Naval Special warfare SBT22, both active duty members of the US Navy; many nieces & nephews.
Freshman forward Marko Spica, who originally signed with UCLA but was not admitted, is averaging 6.
This helped underline the need for larger warships and, in 1981, led to what were essentially renamed fast attack craft, the Stockholm class corvettes being improved Spica I, with Codag (COmbined Diesel And Gas turbine) propulsion and a quantum leap in anti-submarine capability.
On October 2, MSC combat stores ship USNS Spica unexpectedly received orders from US Naval Forces Central Command to divert immediately from its intended course and make best speed to a destination in the southern Red Sea.
Now castaways on their way to the star Spica, Lind and her crew, divided over where blame should be placed for their predicament, ultimately accept their fate and establish a new colony.