Alpha Centauri A, also known as Rigil Kentaurus, is the brightest star in the constellation of Centaurus and is the fourth brightest star in the night sky. Sirius is the brightest even though it is more than twice as far away. By an exciting coincidence, Alpha Centauri A is the same ...
Alpha Centauri is the third brightest star in the night sky. To the naked eye it shines atapparent magnitude-0.27, which is fainter thanCanopus (mag. -0.72)but brighter thanArcturus (mag. -0.04). However, Alpha Centauri is not a single star; it's a triple consisting of two bright compo...
Alpha Centauri is the third brightest star in the night sky. To the naked eye it shines atapparent magnitude-0.27, which is fainter thanCanopus (mag. -0.72)but brighter thanArcturus (mag. -0.04). However, Alpha Centauri is not a single star; it's a triple consisting of two bright compo...
Related to Alpha (Centauri):Alpha Centauri B Al·pha Cen·tau·ri (ăl′fə sĕn-tôr′ē) n. A multiple star in Centaurus, 4.4 light years from Earth, whose three components form the brightest object in the constellation and the third brightest star in the night sky. ...
Note: What is visible in the night sky as the star Alpha Centauri is actually a binary system: two stars bound together gravitationally. Word History Etymology borrowed from New Latin, "Alpha of Centaurus" First Known Use 1777, in the meaning defined above Time Traveler The first known use...
Alpha CentauriThe third brightest star in the sky, apparent magnitude −0.3, and the brightest in the southern cons…Latham, David W
Support rating determines the number of units a base can support for free. The three “secret” technologies (Secrets of the Human Brain, Secrets of Alpha Centauri, and Secrets of Creation) give a free tech advance to the first faction that discovers it. The Secret Project Universal Translato...
Alpha Centauri, triple star system that contains Proxima Centauri, the closest star to the Sun, about 4.2 light-years distant. The system is the third brightest star in the sky. The nearest extrasolar planets are the three planets that orbit Proxima Cent
Alpha Centauri is listed inAlmagest, the star catalog written by Ptolemy around A.D. 150. Although Alpha Centauri was well documented in antiquity, it wasn't until the late 1600s that astronomers began to notice that it was made up of multiplestars. ...
Rigel Kentaurus is the third-brightest star in the night sky. However, its brightness is due to the proximity of the system — commonly known as Alpha Centauri — which is the sun's closest neighbor, about 4.3 light-years away from Earth. ...