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Alpha Centauri

Alpha Centauri (α Centauri, α Cen, or Alpha Cen) is a star system in the southern constellation of Centaurus. It consists of three stars: Rigil Kentaurus (α Centauri A), Toliman (α Centauri B), and Proxima Centauri (α Centauri C). Proxima Centauri is the closest star to the Sun at 4.2465 light-years (ly), which is 1.3020 parsecs (pc), while Alpha…

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Apparent magnitude (V)
+0.01 · +1.33
B−V colour index
+0.71 · +0.88
Constellation
Centaurus
Declination
−60° 50′ 02.3737″ · −60° 50′ 15.0992″
Right ascension
14h 39m 36.49400s · 14h 39m 35.06311s
Spectral type
G2V · K1V

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Overview

Etymology and nomenclature

Observation

Location and motion

Stellar system

Planetary system

View from this system

Future exploration

In culture

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Map overview Semantic statistics

Alpha Centauri

Nodes241
Edges240
Triples266
Avg. degree1.99
Density0.008299
Components1

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Alpha Centauri

Top relations

related to Etymology and nomenclature · 32
Alpha Centauri → Al-Farghani's Compendium, An, Arabic, Bayer, Centaur, Centauri, Centaurus, European, Foot, Golius' Latinisation, Greek, Heracles, It, Jacob Golius, Kentaurus, Lambda, Latinisation, Latinised, Mu Sagittarii, Orionis
related to Observation · 31
Alpha Centauri → April, At, Beta Centauri, Canary Islands, Canopus, Cen, Centauri AB, Centaurus, Chihuahua City, Crux, False Cross, Florida, Galveston, Hadar/Agena, Hermosillo, It, June, Lanzarote, Mexico, North
related to history · 21
Alpha Centauri → Achernar, Acrux, Alexandria, Alpha Centauri AB, Canopus, December, Egypt, English, European, Globis, In Ptolemy's, Jean Richaud, Mizar AB, Ptolemy, Ptolemy's, Ptolemy's Almagest, Puducherry, Robert Hues, South, The
related to In culture · 19
Alpha Centauri → An, Astronomy Center, Australia, Beta Centauri, China, Egypt, Hawaii, In, Incan, Ithaca, Kamailehope, Milky Way, New York, Ngarrindjeri, Polynesians, South Gate, Southern Cross, Southern Hemisphere, The Sagan Planet Walk
related to Planets of Alpha Centauri A · 19
Alpha Centauri → Alpha Centauri Ab, AU, C1, Candidate, Epsilon Muscae, GO Cycle, HIP, If, In, James Webb Space Telescope, July, JWST, March, Multiple, Neptune, Post-launch, Pre-launch, Saturn, The
related to External links · 16
Alpha Centauri → April, Archived, August, February, Immediate, June, March, May, Orbits, Retrieved, SIMBAD, Sixth Catalogue, Stars, The Imperial Star, US Naval Observatory, Visual Binary Stars
related to Hypothetical planets or exploration · 16
Alpha Centauri → Andrea, Archived, Associação, Astronomia, Astronomy, Earth, June, March, Nearby, Nearest, November, Portuguese, Retrieved, Science, Space, Thompson
related to Other names · 15
Alpha Centauri → Alpha Centauri, Although, Beta Centauri, Bungula, Burritt, Chinese, Consequently, During, Epsilon Centauri, Greek, In Chinese, Latin, Nán Mén, Second Star, Southern Gate
related to Future exploration · 14
Alpha Centauri → An, Apollo, August, Breakthrough Starshot, Earth, ESO, European Southern Observatory, Even, NASA, Proxima Centauri, Starshot, Sun, The, Using
related to Orbital properties · 14
Alpha Centauri → AU, August, Earth, February, January, May, Observed, PA, Pluto, Saturn, Sun, The, Their, Viewed

Important terminology Word statistics

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Important terminology

centauri alpha star proxima stars system ab planet sun au distance would around earth planets magnitude binary mass may motion

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Alpha CentauriApparent magnitude (V)+0.011.00infobox
Alpha CentauriApparent magnitude (V)+1.331.00infobox
Alpha CentauriB−V colour index+0.711.00infobox
Alpha CentauriB−V colour index+0.881.00infobox
Alpha CentauriConstellationCentaurus1.00infobox
Alpha CentauriDeclination−60° 50′ 02.3737″1.00infobox
Alpha CentauriDeclination−60° 50′ 15.0992″1.00infobox
Alpha CentauriRight ascension14h 39m 36.49400s1.00infobox
Alpha CentauriRight ascension14h 39m 35.06311s1.00infobox
Alpha CentauriSpectral typeG2V1.00infobox
Alpha CentauriSpectral typeK1V1.00infobox
Alpha Centauriis afirst-magnitude star and is fainter only than Sirius and Canopus0.90text

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