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Alpha Crucis ( α Cru, α Crucis, also Acrux, HD 108248 ) is the brightest star in the constellation Crux, the Southern Cross, and, at a combined visual magnitude 0. 77, is the twelfth brightest star in the night sky.
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Alpha and Crucis
The four main stars that form the asterism are Alpha, Beta, Gamma, and Delta Crucis.
Alpha Crucis, called Acrux, is a triple star 321 light-years from Earth.
Another class-B4 subgiant, Alpha Crucis C or alpha-3 Crucis, lies 90 arcseconds away from triple Acrux and shares Acrux's motion through space, suggesting it may be gravitationally bound to Acrux.
It has also been suggested that Alpha Crucis C is under-luminous for its class, meaning that the system would be an optical double star.
" Acrux " is an " Americanism " for the full Bayer designation " Alpha Crucis ", coined in the 19th century, but entering common use only by the mid 20th century.
Crucis, Alpha
fr: Alpha Crucis
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.
References to Acrux and Crucis Court in the novels probably do not indicate planets around Alpha Crucis, since this system is composed of bright, short-lived stars.
HD 108147 is a 7th magnitude star in the constellation of Crux in direct line with and very near to the bright star Acrux or Alpha Crucis.
The southern cross is tilted so that Gamma Crucis stays in the same position as for the Australian National Flag and that Alpha Crucis is moved along the x-axis towards the hoist by one-sixth of the width of the flag.
The new name derives from the star that sits at the foot of the Southern Cross constellation named Alpha Crucis.
Alpha and α
Alpha ( uppercase Α, lowercase α ; Álpha ) is the first letter of the Greek alphabet.
Arcturus (; α Boo, α Boötis, Alpha Boötis ) is the brightest star in the constellation Boötes and in fact the northern celestial hemisphere.
This makes Arcturus the third brightest individual star, just ahead of Alpha Centauri A ( α Cen A ), whose visual magnitude is − 0. 01.
Antares ( α Scorpii, α Sco, Alpha Scorpii ) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky.
Altair ( Alpha Aquilae, Alpha Aql, α Aquilae, α Aql, Atair ) is the brightest star in the constellation Aquila and the twelfth brightest star in the night sky.
) For example, Aldebaran is designated α Tauri ( pronounced Alpha Tauri ), which means " Alpha of the Bull ".
Since in a majority of constellations the brightest star is designated Alpha ( α ), many people wrongly assume that Bayer meant to put the stars exclusively in order of their brightness, but in his day there was no way to measure stellar brightness precisely.
Alpha particles ( α ) are stopped by a sheet of paper while beta particles ( β ) are stopped by an aluminium plate.
Thuban also known by its Bayer designation Alpha Draconis ( α Draconis, α Dra ) is a star ( or star system ) in the constellation of Draco.
Vega ( α Lyr, α Lyrae, Alpha Lyrae ) is the brightest star in the constellation Lyra, the fifth brightest star in the night sky and the second brightest star in the northern celestial hemisphere, after Arcturus.
Alpha amylase degrades starch to a mixture of the disaccharide maltose, the trisaccharide maltotriose, which contains three α ( 1-4 )- linked glucose residues, and oligosaccharides known as dextrins that contain the α ( 1-6 )- linked glucose branches.
Alpha Cygni ( α Cyg ) variables are nonradially pulsating supergiants of spectral classes B < sub > ep </ sub > to A < sub > ep </ sub > Ia.
Alpha Arietis ( α Ari, α Arietis ) is the Bayer designation for the brightest star in the northern zodiacal constellation of Aries.
* Alpha blockers ( technically α < sub > 1 </ sub >- adrenergic receptor antagonists ) are the most common choice for initial therapy in the USA and Europe.
Alpha Herculis ( α Her, α Herculis ) is a multiple star system in the constellation Hercules.
Alpha and also
Alpha also stands for thermal expansion coefficient of a compound in physical chemistry.
The 1999 game Sid Meier's Alpha Centauri was also created by Meier and is in the same genre, but with a futuristic / space theme.
Implementations also exist for the Interdata 8 / 32, PDP-11, VAX, Alpha platforms and HP Integrity servers ; for the Honeywell, and for the Computer Technology Limited ( CTL, later ITL ) Modular-1 ; as well as for SPARC running Solaris and Intel running Linux.
She is also the patroness of the historically Catholic American woman's fraternity, Theta Phi Alpha.
DEC initially started work on Alpha as a way to re-implement their VAX series, but also employed it in a range of high-performance workstations.
Several third-party vendors also produced Alpha systems, including PC form factor motherboards.
Internally, Alpha processors were also identified by EV numbers, EV officially standing for " Extended VAX " but having an alternative humorous meaning of " Electric Vlasic ", giving homage to the Electric Pickle experiment at Western Research Lab.
Given Pauling's recent success in discovering the Alpha helix, they feared that Pauling might also be the first to determine the structure of DNA.
He was also a member of the Alpha Gamma Rho Fraternity, Pi chapter.
They also announced that TSR had restarted development of Metamorphosis Alpha to Omega, but that the manuscript would be completed using the Amazing Engine rules.
Earlier versions also ran on the i860, Alpha, MIPS, Fairchild Clipper, and PowerPC architectures.
The success of this initial processor version was limited to replacing PA-RISC in HP systems, Alpha in Compaq systems and MIPS in SGI systems, though IBM also delivered a supercomputer based on this processor.
Alpha Microscopii is also a yellow giant, though in this case a variable star, which ranges between apparent magnitudes 4. 88 and 4. 94.
The 68040 was also used in other personal computers, such as the Amiga 4000 and Amiga 4000T, as well as a number of workstations, Alpha Microsystems servers, the HP 9000 / 400 series, and later versions of the NeXT computer.
The P5 Pentium competitors included the Motorola 68060 and the PowerPC 601 as well as the SPARC, MIPS, and Alpha microprocessor families, most of which also used a superscalar in-order dual instruction pipeline configuration at some time.
Symbolics also made significant advances in software technology, and offered one of the premier software development environments of the 1980s and 1990s, now sold commercially as Open Genera for Tru64 UNIX on the HP Alpha.
Two melodies from Albedo 0. 39, " Alpha " and " Pulstar ", and also one track from L ' Apocalypse des animaux, " Création du Monde ", were also used in Cosmos.
He became a member of the Alpha Tau Omega fraternity and dated Phoebe Clara Davis, who also came from Chelsea.
It would also have allowed the Alpha Magnetic Spectrometer to be launched to the ISS, which the schedule at the time did not allow.
Market basket analysis has also been used to identify the purchase patterns of the Alpha Consumer.
But starting with their second album, Alpha Centauri, the group has been a trio or occasionally duo of electronic instruments, commonly augmented by guitar from Froese ( or, much later, other musicians as well ), and occasionally also other instruments.
* The lyrebird is also featured atop the crest of Panhellenic Sorority Alpha Chi Omega, whose symbol is the lyre.
He also joined Sigma Alpha Epsilon fraternity.
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