Spica
Related Category: Astronomy: Stars
(sp´k), brightest star in the constellation Virgo; Bayer designation Alpha Virginis; 1992 position R.A. 13h24.8m, Dec. −11°07&minut;.
Spica (α Vir / α Virginis / Alpha Virginis) is the brightest star in the constellation Virgo, and one of the brightest stars in the nighttime sky.
SPICA (Alpha Virginis). Spica, the luminary of Virgo, becomes prominent in the southeast in northern spring evenings, and can easily be found by following the curve of the Big Dipper's handle through Arcturus and then on down.
Spica is Latin and means "The Ear of Wheat. This name suggests the association of Virgo with the Goddess of the Harvest, Ceres or Demeter. The Latin name Spica Virginis means nothing more than "The Virgin's Ear of Wheat." ...
Spica is the 14th brightest star in the sky. Take a look at the list of the Brightest Stars
Comments
Name Alaraph also given HR 4540, 4932.
Mars, Spica and a Sombrero
This week offers us a variety of treats, from Mars to Spica to The Sombrero Galaxy.
Spica
Los enlaces en color anaranjado lo llevan a páginas en Inglés aún no traducidas al Español.
Haz "click" en la imagen para una vista completa ...
Actaea spicata is a species of flowering plant in the genus Actaea, native to Europe and western Asia.It is a herbaceous perennial plant growing 30-60 cm tall....
(syn. Actaea alba) - Baneberry, Herb Christopher ...
SPICAV was also able to measure wind speeds at different altitudes above Venus.
SPICAM - UK and IR Atmospheric Spectrometer
Like the PFS instrument, SPICAM will also measure the composition of the Martian atmosphere but in smaller volumes.
Spica is the brightest star in Virgo and naturally Saturn will be in the same constellation all month. On April 17, the moon, only a few hours short of being full will pass Saturn and Spica.
Spica
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Spica. [H76]
W Virginis Stars
Population II Cepheids. [H76]
Virgo A ...
Rigel (B8), Spica
A
Neutral He lines very faint; Balmer H lines dominant, singly-ionized metal lines
K = 7,500-10,000; M = 2.0-3.0; R = 1.7-2.7; L = 8-55; T = 400-3,000 Ma ...
For example, Spica has an apparent magnitude of 0.98 and stars of its type have absolute magnitudes of about -3.55, so Spica is at a distance of 10[0.98 - (-3.55) + 5]/5 = 101.906 = 80.54 which is very close to the trig.
Examples: Rigel, Spica, the brighter Pleiades
Class A
Class A stars are amongst the more common naked eye stars, and are white or bluish-white.
In a distance of 260 lightyears lies the leading star, alpha Vir, Spica (meaning the ear of wheat), a blue-white star of 1.0 mag.
*Spring is marked by the Diamond of Virgo consisting of Arcturus, Spica, Denebola, and Cor Caroli.
Virgo is an ancient constellation, that is easily located by using its brightest member, the star Spica. Throughout history this group of stars has been pictured as a women.
Ptolemy measured the longitudes of Regulus, Spica, and other bright stars with a variation of Hipparchus' lunar method that did not require eclipses. Before sunset, he measured the longitudinal arc separating the Moon from the Sun.
"Arc to Arcturus then spike to Spica" (keep following the arc from the Big Dipper's handle past Arcturus). A blue main sequence star, just below the ecliptic. It is also an eclipsing binary.
The brightest star in Virgo is [8774] Spica ("ear of grain" or "wheat"), alpha Virginis. Spica is the 15th brightest star in the sky. It lies 260 light-years from Earth and has an apparent magnitude of 1.04.
According to Ptolemy, Hipparchus measured the longitude of Spica and other bright stars. Comparing his measurements with data from his predecessors, Timocharis and Aristillus, he realized that Spica had moved 2° relative to the autumnal equinox.
"Arc to Arcturus and Speed to Spica."
Follow the curve of the handle of the Big Dipper and you will "Arc to Arcturus", a bright star in the Boötes constellation and continuing on the same curve, if it hasn't set below the horizon yet, ...
Virgo, the Maiden, was associated with Babylonian godess of fertility Ishtar with the brightest star, Spica seen as the Ear of Grain. Nearby Leo and Coma represented two other attribute of Ishtar: Lion and Cluster of Dates.
For example, I may say that "Venus passes close to the star Spica" on a particular night but you know that the star is actually too far away for a planet to actually get near it.
If you continue the arc further, you will reach Spica in Virgo. You can remember this by saying "Arc to Arcturus and Speed to Spica." ...
Alpha Virginis is known as Spica: the "ear of wheat" that the goddess is carrying. Spica is a blue-white eclipsing binary with a period of just over four days.
The SPICAV/SOIR infrared & ultraviolet spectrometer and the VeRa instrument will also probe the atmosphere, observing stellar occultation and detecting radio signals; the former will in particular seek to detect molecules of water, ...
1. How far away is the star Spica, whose parallax is 0.013"?(Hint) What would Spica's parallax be if it were measured from an observatory on Neptune's moon Triton as Neptune orbited the Sun? (Hint) ...
Yellow-orange Arcturus, the brighter of the two, shines to your left while blue-white Spica sparkles to the right. The asteroid resides to the upper right of Arcturus and the upper left of Spica. (See star map).* ...
Polaris
Deneb
Antares
Spica
8. An astronomer announces a newly discovered star is moving away from us at 100 km/sec. How is this deterimined?
Named stars: Alpha Vir (Spica/Azimech/Alaazel), Beta Vir (Alaraph), Delta Vir (Minelauva), Epsilon Vir (Almuredin/Vindemiatrix), Zeta Vir (Heze) ...
A massive, hot star that appears blue in color. Spica in the constellation Virgo is an example of a blue star.
Brown Dwarf ...
Main named stars in Virgo: (Greek alphabet)
Auva (δ Vir), Heze (ζ Vir), Porrima (γ Vir), Rijl al Awwa (μ Vir), Spica (α Vir), Syrma (ι Vir), Vindemiatrix (ε Vir), Zaniah (η Vir), Zavijah (β Vir).
It is located along the ecliptic between Leo and Libra. Virgo is seen along the . The brightest star in Virgo is Spica (meaning "ear of wheat"). Virgo is the second-largest constellation (of the 88 constellations), after Hydra.
Algol A is hotter,
brighter, and bluer
than Vega or Sirius A,
but is cooler, dimmer,
and smaller than Spica.
Virgo depicted in the Atlas Coelestis of John Flamsteed. In her right hand she
carries a palm frond, while in her left hand she holds an ear of wheat marked
by the bright star Spica.
Temperatures of B-type stars range from 11,000 - 25,000 K. Their mass averages 18 times the mass of the Sun and the average luminosity is 20,000 times that of the Sun. Examples include Rigel, Spica, and Regulus.
The SPICAM, an ultraviolet and infrared spectrometer, simultaneously measured the distribution of ozone and water vapor and discovered there is more water vapour where there is less ozone.
Their initial point at the autumnal equinox marked by Kio (Spica Virginis) suits a still later date; and there is no valid evidence that the modern series resulted from the rectification of an older superannuated arrangement, ...
 See also: Star, Sun, Sky, Light, Constellation
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