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Topic: Alpha Centauri


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  Alpha Centauri - MSN Encarta
Alpha Centauri C is also called Proxima Centauri; in the current portion of its orbit it is the closest star to the solar system, at a distance of 4.2 light-years.
Alpha Centauri A is a yellow star, slightly larger and brighter than the Sun, of spectral type G2 and apparent magnitude +0.01.
Alpha Centauri B is a yellow-orange star somewhat smaller and cooler than the Sun of spectral type K1 and apparent magnitude +1.34.
encarta.msn.com /encyclopedia_761564548/Alpha_Centauri.html   (371 words)

  
  Alpha Centauri - Wikipedia, the free encyclopedia
It and Beta Centauri (which is close to Alpha Centauri in angular distance as seen from the Earth, but is actually many light-years away) are the "Pointers" to the Southern Cross.
Alpha and Beta Centauri are the second closest pair of first magnitude stars as seen from the Earth, and due to the effects of proper motion, they will become the closest pair in around 2166, overtaking Acrux and Becrux.
In Frank Herbert's Dune universe, the planet Ecaz is the fourth planet that orbits Alpha Centauri B. Ecaz is ruled by the feudal noble family of House Ecaz, and is known for its famous fogwood.
en.wikipedia.org /wiki/Alpha_Centauri   (2056 words)

  
 Alpha Centauri
Alpha Centauri lies at a distance of 4.395 light-years (1.349 parsecs) in the constellation Centaurus.
Alpha Centauri A is a yellow G star similar to the Sun but about 1.5 times as bright; B is a smaller, orange K star with about half the Sun's luminosity.
The third possible member of the system, Proxima Centauri, is a red dwarf, about 7,000 times fainter than the Sun, which, if it is truly associated with the main pair, moves in a very wide orbit with a period of millions of years.
www.daviddarling.info /encyclopedia/A/AlphaCen.html   (801 words)

  
 eSky: Alpha Centauri
Alpha Centauri is a star of the southern sky, and is not visible to observers at a latitude greater than about 25° north (roughly the latitude of Florida, Egypt or Taiwan).
Alpha Centauri B is an orange star, rather cooler than the Sun, and slightly less massive.
Alpha Centauri - famous as the nearest visible star to the Sun - represents the foot of the Centaur, and falls near the southern and eastern borders of that constellation, on the fringes of Circinus.
www.glyphweb.com /esky/stars/alphacentauri.html   (859 words)

  
 Alpha Centauri - Wikipedia
Alpha Centauri is the brightest star in the southern constellation of Centaurus, and one of the brightest in the entire night sky.
Like the sun, its spectral type is G2 V. The smaller component, Alpha Centauri B, is dimmer, with a spectral type of K1 V. The two orbit one another elliptically (e=0.52), approaching as close as 11.2 astronomical units and receding to 35.6 AU with a period of just under 80 years.
The red dwarf Proxima Centauri is only about 13,000 astronomical units away from Alpha Centauri and may be in orbit about it, with a period on the order of 500,000 years or more.
nostalgia.wikipedia.org /wiki/Alpha_Centauri   (318 words)

  
 Sid Meier's Alpha Centauri - Wikipedia, the free encyclopedia
While not being a direct sequel of Civilization II, Alpha Centauri was considered a continuation or a successor of that much acclaimed game, because it had the same general principles as Civilization II did, and had been made by many of the same people.
Alpha Centauri was built on the Civilization II engine modified for voxel graphics.
The magazine PC Gamer US awarded Alpha Centauri a score of 98%, which was the highest score ever given by that magazineā€”Civilization II being the previous holder of this record with 97%.
en.wikipedia.org /wiki/Sid_Meier's_Alpha_Centauri   (4442 words)

  
 Alpha Centauri .................................................
The Alpha Centauri system is not visible in most of the northern hemisphere; in the south, Alpha Centauri A is the brightest star in the constellation Centaurus and is the fourth brightest in the night sky.
Alpha Centauri A is the same type of star as our Sun, a spectral type G2 star, with the same colour and temperature as our sun.
Alpha Centauri B is a cooler orange star with a spectral type K1.
www.worsleyschool.net /science/files/alpha/centauri.html   (529 words)

  
 GameOver - Sid Meier's Alpha Centauri (c) Firaxis Games
Alpha Centauri's sound is essentially the same as the civilization series except for few couple differences.
In Alpha Centauri you are able to use your mouse by choosing the unit and then clicking on its destination which it will then move towards.
Or you can do it the Alpha Centauri style where you can be elected supreme ruler (now what fun is that!) or you can still nuke everybody out of their house and homes.
www.game-over.net /review/feb99/alpha/index.html   (3773 words)

  
 Proxima Centauri - Memory Alpha, the Star Trek Wiki
Proxima Centauri (meaning "the closest (star) of the Centaur (constellation)"), also known as Alpha Centauri C or Alpha Proxima is the nearest star to the Sol system with a distance of only 4.22 light years.
It is a red dwarf main sequence star (spectral class M5V), orbiting the double star Alpha Centauri at a distance of approximately 13,000 AU.
As of 2008 it was not clear whether Alpha Centauri C is truly a member of the Alpha Centauri system or just passes it.
memory-alpha.org /en/wiki/Proxima_Centauri   (300 words)

  
 Destination: Alpha Centauri
Alpha Centauri "B" is an orange star with a spectral type of K1, somewhat cooler than our own Sun and Alpha Centauri "A" in both color and temperature.
Alpha Centauri "B" is a K1 star, hotter and brighter than most other K spectral class stars, therefore it may pass this test or it may not.
Our understanding of the nature of the orbits of the binary Alpha Centauri "A" and Alpha Centauri "B" point to the fact that their closest approach towards each other is 11 AU which means that the theoretical limit for planetary orbits is somewhere in the region of two astronomical units.
www.goingfaster.com /icarus/destinationalpha.htm   (1926 words)

  
 Alpha Centauri
Alpha Centauri is a special star - not only because it is the closest stellar system to the sun but also because it is one of the relatively few places in the Milky Way Galaxy that may offer terrestrial life conditions.
Alpha Centauri C lies measurably closer to us than the other two: It is only 4.22 light-years away, and it is the nearest individual star to the Sun.
Alpha Centauri B is a K1 star, so it is hotter and brighter than most K stars, therefore it may pass this test or it may not.
homepage.sunrise.ch /homepage/schatzer/Alpha-Centauri.html   (1395 words)

  
 Alpha Centauri - Memory Alpha, the Star Trek Wiki
As a system, Alpha Centauri consisted of a binary pair of stars, Alpha Centauri A and B, and a third, more distant companion, Alpha Centauri C or "Proxima Centauri".
Alpha Centauri (misspelled "Alpha Centuri") was mentioned as a small note on a very large star chart graphic created for TNG: "Conspiracy".
The Alpha Centauri colony is believed to have been a founding member of the United Federation of Planets, along with Earth, Andoria, Tellar, and Vulcan.
memory-alpha.org /en/wiki/Alpha_Centauri   (648 words)

  
 Alpha Centauri - Memory Alpha   (Site not responding. Last check: )
Alpha Centauri (also Toliman or Rigil Kentaurus) is a trinary star system about 4.33 light years from Sol and the primary of the Alpha Centauri system.
It consists of a binary pair, Alpha Centauri A and B (spectral classes G2 V and K1 V), and a potential third, more distant companion, Alpha Centauri C or "Proxima Centauri".
Alpha Centauri was mentioned as a small note on a very large star chart graphic created for TNG: "Conspiracy." It was the image behind the chair in the room where Dexter Remmick was killed.
www.memory-alpha.org /en/index.php/Alpha_Centauri   (317 words)

  
 Alpha Centauri
Alpha Centauri is a system of three stars: Alpha Centauri A, Alpha Centauri B and Proxima Centauri.
Alpha Centauri A: It is 4.36 light years from Earth and shines with a yellowish-white light.
Alpha Centauri B: It is 4.36 light years from Earth and shines with an orangish-yellow-white light.
www.aerospaceguide.net /alphacentauri.html   (332 words)

  
 Centauri Dreams » Blog Archive » Alpha Centauri in Context
One problem is that Centauri A and B are relatively close to each other, with a semimajor axis of 23.4 AU.
Using a protoplanetary disk centered on Centauri A and co-planar to the binary orbital plane, five terrestrial planets at least as massive as Mercury form around Centauri A within 100 million years, stable in orbits within 2 AU for the remainder of a 200 million year simulation.
Alpha Centauri, it seems fair to say, may prove to be home to some of the most intriguing exoplanets we’ll find in the near future.
www.centauri-dreams.org /?p=1292   (2283 words)

  
 Alpha Centauri 3
The distance separating Alpha Centauri A from its companion star B averages 23.7 AUs (semi-major axis of 17.57" with a HIPPARCOS distance estimate of 4.40 light-years).
Proxima (Alpha Centauri C) is a very cool and very dim, main sequence red dwarf (M5.5Ve) that appears to have only 0.107 Ā± 0.021 percent of Sol's mass (Pourbaix et al, 2002) and 14.5 percent of its diameter (ESO press releases of 3/15/03 and 2/22/02; and Doyle and Butler, 1990, page 337).
Alpha Centauri is not visible in much of the Northern Hemisphere, as Constellation Centaurus cannot be viewed from middle northern latitudes of around 40 degrees, but should become more easily visible to observers that travel south of the equator.
www.solstation.com /stars/alp-cent3.htm   (2228 words)

  
 Sid Meier's Alpha Centauri for PC Review - PC Sid Meier's Alpha Centauri Review
Well, be warned: Sid Meier's Alpha Centauri is another one of those games that can make hours pass like minutes, a game that makes you put a cooler full of sandwiches and sodas next to your computer desk so you don't have to get up all weekend.
Alpha Centauri takes automation to a new height, with features that will be welcome to gamers who don't enjoy management and to anyone who has dozens of units and cities in the latter stages of a game.
Alpha Centauri's multiplayer support is well done, with simultaneous movement that keeps you from having to sit around while other players make their moves.
www.gamespot.com /pc/strategy/sidmeiersalphacentauri/review.html   (1471 words)

  
 MSX Showcase: Alpha Centauri
The Alpha Centauri system is actually a group of three stars: Proxima Centauri, and Alpha Centauri A and B. Proxima Centauri is the dimmest of the three, and is actually the closest star to the Earth.
Alpha Centauri A and B are a close binary pair.
The Alpha Centauri system is at a distance of about 4.3 light years from the Earth.
coolcosmos.ipac.caltech.edu /msx/alpha_centauri.html   (62 words)

  
 Sid Meier Alpha Centauri PC Game Review
In Alpha Centauri, the map is drawn with genuine vertical contours, shown as deformations in the square grid.
In Alpha Centauri, you have separate Colonizer units to found cities, while in Civ2 Settler/Engineer units are used both to found cities and improve the countryside.
In Alpha Centauri, the unit, city improvement, research and special project hierarchies are all considerably deeper.
www.gamenationtv.com /reviews/alpha.shtml   (1152 words)

  
 What is Alpha Centauri?
The first two are often referred to as Centauri A and Centauri B while the last is Centauri C. Alpha Centauri is a yellowish-white dwarf star with about 10% greater mass than our Sun.
Alpha Centauri and Beta Centauri have an eccentric orbit around each other, coming as close as 11 AU (astronomical units, or Earth-Sun distances) and separating as far as 35 AU.
Proxima Centauri orbits Beta and Alpha Centauri at a distance of 11,000 AU, or about 0.21 light years, which is 1/20th of the way between the Sun and Alpha Centauri.
www.wisegeek.com /what-is-alpha-centauri.htm   (406 words)

  
 Close Stars
The closest star to the sun is Proxima Centauri, but its brighter neighbor Alpha Centauri, a double star, is so nearly the same distance that data about it are usually given.
The parallax of Proxima Centauri as the Earth orbits the sun is about equivalent to that of a dime at a distance of 6 kilometers.
This star is notable for being the closest star to the sun, but its brighter neighbor Alpha Centauri, a double star, is so nearly the same distance that data about it are usually given.
hyperphysics.phy-astr.gsu.edu /hbase/starlog/strclos.html   (630 words)

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