In dictionaries:
Alpha Centauri
Nearest star system to Earth.
Proxima Centauri
Nearest star system to Earth.
Omega Centauri
Giant globular cluster in Centaurus.
Beta Centauri
Bright star in Centaurus constellation.
alpha centauri system
Nearest star system to Earth.
Alpha Centauri A
(astronomy) The brightest star in the southern constellation of Centaurus. Alpha Centauri is actually a binary star with Alpha Centauri C or Proxima Centauri as a third component. Alpha Centauri A is the brightest star of the system and is somewhat brighter than our sun. Alpha Centauri B is somewhat fainter than Alpha Centauri A but much brighter than Proxima Centauri.
Alpha Centauri B
(astronomy) The brightest star in the southern constellation of Centaurus. Alpha Centauri is actually a binary star with Proxima Centauri as a third component. Alpha Centauri B is less bright than Alpha Centauri A and is somewhat less bright than our sun.
Alpha Centauri C
(astronomy) The star Proxima Centauri
N Centauri
A double star in the constellation of Centaurus.
Proxima Centauri b
Proxima Centauri b (or Proxima b), also referred to as Alpha Centauri Cb, is an exoplanet orbiting within the habitable zone of the red dwarf star Proxima Centauri, which is the closest star to the Sun and part of the larger triple star system Alpha Centauri.
Proxima Centauri c
Proxima Centauri c (also called Proxima c or Alpha Centauri Cc) is a controversial exoplanet candidate whose detection could not be recreated, claimed to be orbiting the red dwarf star Proxima Centauri, which is the closest star to the Sun and part of a triple star system.
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