The four main stars that form the asterism are Alpha, Beta, Gamma, and Delta Crucis.

Beta Crucis, called Mimosa, is a blue-hued giant of magnitude 1. 3, 353 light-years from Earth.

The southern celestial pole lies at the intersection of ( a ) the line along the long axis of crux ( i. e. through Alpha Crucis and Gamma Crucis ) and ( b ) a line perpendicularly bisecting the line joining the " Pointers " ( Alpha Centauri and Beta Centauri ).

Beta Crucis, also known as Mimosa or Becrux, is the second brightest star in the constellation Crux ( after Alpha Crucis or Acrux ) and is the 19th brightest star in the night sky.

Although Beta Crucis, " Becrux ", is at roughly − 60 ° declination, and therefore not visible north of 30 °, in the time of the ancient Greeks and Romans it was visible north of 40 ° due to the precession of equinoxes, and these civilizations regarded it as part of the constellation Centaurus.

Beta Crucis is believed to be the hottest first-magnitude star, with an apparent visual magnitude of 1. 25.

The primary, Beta Crucis A, is a massive star with about 16 times the Sun's mass.

Beta Crucis A is a known Beta Cephei variable, although with an effective temperature of about 27, 000 K it is at the high end of the instability strip where such stars are found.

Crucis, Beta

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Thus Beta Crucis appears to the right of the constellation and Delta Crucis to the left, in mirror image of the way they actually appear in the sky ( and, coincidentally, the way they appear on the Brazilian coat of arms ).

The cluster looks like a star to the unaided eye and appears close to the easternmost star of the Southern Cross, ( Beta Crucis ), so is only visible from southern latitudes.

The Jewel Box cluster can be easily located using the star Beta Crucis as a guide, and appears as a fourth magnitude object.

Delta Crucis is a strong candidate Beta Cephei variable and changes its brightness subtly with a period of 1. 3 hours.

# redirect Beta Crucis

Beta testing takes place at customers ' sites, and involves testing by a group of customers who use the system at their own locations and provide feedback, before the system is released to other customers.

Beta Tucanae consists of a group of six stars that may be loosely gravitationally bound into a system.

Beta particles are also used in quality control to test the thickness of an item, such as paper, coming through a system of rollers.

* Bronson Alpha and Bronson Beta — Planets that enter the solar system in Philip Gordon Wylie and Edwin Balmer's novel When Worlds Collide.

In the system of Greek numerals Beta has a value of 2.

Beta Monocerotis is an impressive triple star system, the three stars forming a triangle which seems to be fixed.

Beta blockers block the action of endogenous catecholamines epinephrine ( adrenaline ) and norepinephrine ( noradrenaline ) in particular, on β-adrenergic receptors, part of the sympathetic nervous system which mediates the fight-or-flight response.

Beta blockers, in addition to their sympatholytic B1 activity in the heart, influence the renin / angiotensin system at the kidneys.

The arrival of the Betacam system reduced the demand for both Industrial Beta and U-Matic equipment.

However, to the chagrin of Sony, JVC did develop a VHS hi-fi system on the principle of depth multiplexing approximately a year after the first Beta Hi-Fi VCR, the SL-5200, was introduced by Sony.

Beta Centauri ( β Cen, β Centauri ) is a star system in the southern constellation of Centaurus.

Orion Beta is a star system noted for its madranite mining belts.

The first system to be successful with consumers was Sony's Betamax ( or Beta ) in 1975.

The house system was first established in 1909, when there were three houses: Alpha, Beta and Gamma, each of which had a house master and captain.

The fictional planet Lagash ( Kalgash in the novel adaptation ) is located in a stellar system containing six suns ( Alpha, Beta, Gamma, Delta are the only ones named in the short story ; Onos, Dovim, Trey, Patru, Tano, and Sitha in the novel ), which keep the whole planet continuously illuminated ; total darkness is unknown, and as a result so are stars outside the stellar system.

The Mac OS X Public Beta ( internally codenamed " Kodiak ") was an early beta version of Apple Computer's Mac OS X operating system Cheetah.

The Public Beta succeeded Mac OS X Server 1. 0, the first public release of Apple's new NeXT OpenStep-based operating system, which used a variant of the classic Mac OS ' " Platinum " user interface look and feel.

Sony had demonstrated a prototype videotape recording system they called " Beta " to the other electronics manufacturers in 1974, and expected that they would back a single format for the good of all.

Alpha Phi Alpha, Phi Beta Sigma, Delta Sigma Theta, and a Sigma Gamma Rho operate under the National Pan-Hellenic Council system.

Sven Bronson, a South African astronomer, discovers that a pair of rogue planets, Bronson Alpha and Bronson Beta, will soon enter the solar system.

The filesystem had a similar set of properties to the native BeOS file system BFS, but some of the more advanced features ( live queries and attributes ) were either broken or non-functional in many of the Beta releases of the software.

The USS Enterprise is en route to the neutral world of Parliament with delegates from two warring planets in the Beta Renner system, the reptilian Selay and the canine Antican, when the ship encounters a strange energy cloud.