Alpha Centaurin.

Brit.

/ˈalfə sɛnˈtɔːrʌɪ/,

/ˈalfə sɛnˈtɔːriː/, U.S.

/ˈælfə ˌsɛnˈtɔˌraɪ/

Forms: also represented by the abbreviation α Centauri.

Origin: Formed within English, by compounding. Etymons: alpha n., Centauri , Centaurus n.

Etymology: < alpha n. + Centauri, genitive of Centaurus n.

Astronomy.

A binary star of the first magnitude which is the brightest star in the constellation Centaurus of the southern hemisphere and the third-brightest star in the sky; also called Rigel Kentaurus or Rigel Kent. In later use also (more fully Alpha Centauri system): the three-star system comprising this binary star and the dwarf star Proxima Centauri.The Alpha Centauri system is the closest known star system to the Sun.

ΚΠ

1777 W. Wales & W. Bayley Orig. Astron. Observ. 29 (table) α Centauri, East.

1840 M. Somerville On Connexion Physical Sci. (ed. 5) 415 Vacant and entirely starless patches, especially in Scorpio, near Alpha Centauri and the Cross.

1874 R. A. Proctor Expanse of Heaven (new ed.) 243 Sirius is much farther away than Alpha Centauri, and, moreover, shines much more brightly.

1939 Times 3 Jan. 13/6 Alpha Centauri, one of the brightest stars in the southern heavens.

1992 W. W. Wagar Short Hist. Future (ed. 2) xii. 288 They visited the single terrestrial planet in the Alpha Centauri system, returning in glory in 2178.

2001 J. Martin & L. Staumbaum Laser Beams Set Two Teaching Guide 53 Particular emphasis upon the triple star, Alpha Centauri... One of these three stars is the closest star to our Sun.

This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	alpha centauri
释义	Alpha Centaurin. Brit. /ˈalfə sɛnˈtɔːrʌɪ/, /ˈalfə sɛnˈtɔːriː/, U.S. /ˈælfə ˌsɛnˈtɔˌraɪ/ Forms: also represented by the abbreviation α Centauri. Origin: Formed within English, by compounding. Etymons: alpha n., Centauri , Centaurus n. Etymology: < alpha n. + Centauri, genitive of Centaurus n. Astronomy. A binary star of the first magnitude which is the brightest star in the constellation Centaurus of the southern hemisphere and the third-brightest star in the sky; also called Rigel Kentaurus or Rigel Kent. In later use also (more fully Alpha Centauri system): the three-star system comprising this binary star and the dwarf star Proxima Centauri.The Alpha Centauri system is the closest known star system to the Sun. ΚΠ 1777 W. Wales & W. Bayley Orig. Astron. Observ. 29 (table) α Centauri, East. 1840 M. Somerville On Connexion Physical Sci. (ed. 5) 415 Vacant and entirely starless patches, especially in Scorpio, near Alpha Centauri and the Cross. 1874 R. A. Proctor Expanse of Heaven (new ed.) 243 Sirius is much farther away than Alpha Centauri, and, moreover, shines much more brightly. 1939 Times 3 Jan. 13/6 Alpha Centauri, one of the brightest stars in the southern heavens. 1992 W. W. Wagar Short Hist. Future (ed. 2) xii. 288 They visited the single terrestrial planet in the Alpha Centauri system, returning in glory in 2178. 2001 J. Martin & L. Staumbaum Laser Beams Set Two Teaching Guide 53 Particular emphasis upon the triple star, Alpha Centauri... One of these three stars is the closest star to our Sun. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < n.1777
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