Acrux
Related Category: Astronomy: Stars
(´krks) [from the Bayer designation &agr; Crucis], brightest star in the constellation Crux (Southern Cross); 1992 position R.A. 12h26.2m, Dec. −63°04&minut;. Its apparent magnitude of 0.
Acrux (Alpha Crucis)
The twelfth brightest star in the sky, the southernmost first magnitude star, and the brightest and southernmost star in Crux. Acrux is a multiple system.
ACRUX (Alpha Crucis). Among the most famous constellations in the sky is a "modern" one that is quite invisible from most of the populated northern hemisphere: Crux, the Southern Cross.
Acrux is the 13th brightest star in the sky. Take a look at the list of the Brightest Stars ...
Acrux A is the primary component of an apparently three star system. A is a blue B0.5IV subgiant star, much larger and brighter than our sun. The Millenium Star Atlas lists the apparent magnitude of this component as 1.34.
Acrux
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ACRUX
Acrux (also known as alpha Crux) is a first magnitude star in the Southern Hemisphere constellation Crux (the Southern Cross).
ACRUX (Alpha 1 Cru)
Becrux (Beta Cru)
Gacrux (Gamma Cru)
The Southern Cross is only visible form sites farther south than 27 degrees north latitude.
- Acrux Information - Information About the Star Crux
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Named Stars: ACRUX (Alpha 1 Cru) Becrux (Beta Cru) Gacrux (Gamma Cru)
One of the better features in the constellation Crux is the coalsack nebula. A dark patch in the southern Milky Way visible to the naked eye.
Cha Chamaeleon Chameleon Cir Circinus Compasses Col Columba Dove Com Coma Berenices Berenice's Hair CrA Corona Australis Southern Crown CrB Corona Borealis Northern Crown Alphecca (Gemma) Crv Corvus Crow Alchiba Crt Crater Cup Cru Crux Cross Acrux ...
The brightest star in Crux is Acrux (alpha Cru), a double-star system at the base of the cross. The second-brightest star is Becrux or Mimosa (Beta Cru); the third-brightest is Gacrux (Gamma Cru).
The constellation's brightest star is sometimes called Acrux, a name applied by navigators from its scientific designation Alpha Crucis. It is actually a double star, divisible through small telescopes into two sparkling blue-white points.
Acrux (α Cru), Atria (α TrA), Gacrux (γ Cru), Hadar (Agena, β Cen), Miaplacidus (β Car), Mimosa (Becrux, β Cru), Rigil Kentaurus (Toliman, α Cen), Scutulum (or Aspidiske, ι Car).
The principal star of note in the constellation is Acrux (alpha Crucis), a splendid binary (see below). The combined visual magnitude of both stars results in a magnitude of 0.72.
The principal star in Crux is [3020] alpha Crucis, also known as Acrux (contraction of "alpha" and "Crux"), a binary star about 360 light-years distant. It is the twelfth brightest star in the sky, with a visual magnitude 0.77.
Named stars: Alpha Cru (Acrux), Beta Crux (Becrux), Gamma Crux (Gacrux)
Info: A small constellation that contains bright stars and a lot of star clusters.
Cygnus (Swan/Northern Cross) ...
Visible only from southern latitudes. Acrux is the southernmost first magnitude star, just a bit more southerly than Alpha Centauri.
14
Aldebaran ...
08 (6th), and Acrux is 0.77 (13th).
There are statistical variations in measured values.
Some stars are actually variable stars (as indicated with var).
V Magnitude Bayer Designation Proper name Distance (ly) External link
0 ...
2 Acrux Binary Southern Cross 360 0.83 -3.9 Aldebaran Orange Taurus 68 0.85 -0.3 Antares Red Giant Scorpius 330 0.96 -4.7 Spica Blue Giant Virgo 260 0.98 -3.6 Pollux Orange Giant Gemini 36 1.14 0.2 Fomalhaut White Piscis Australis 22 1.16 2.
 See also: Star, Constellation, Sky, Earth, Taurus
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