2 Tri

2 Tri

Alpha Trianguli

α Trianguli
Données d'observation
(Époque )
Ascension droite 01h 53m 04.9s
Déclinaison +29° 34′ 44″
Constellation Triangle
Magnitude apparente +3,42
Magnitude absolue  ?
Distance 64,1 ± 1,0 al
(19,7 ± 0,3 pc)
Type spectral F6IV
Autres désignations
α Tri (Bayer), 2 Tri (Flamsteed), HR 544, HD 11443, BD+28 312, FK5 64, HIP 8796, SAO 74996, CCDM 01531 +2935, GJ 78.1/GJ 9062, LTT 10647, NLTT 6290

Alpha Trianguli (α Trianguli / α Tri) est une étoile située dans la constellation du Triangle. Bien que possédant la lettre alpha dans la désignation de Bayer, elle n'est pas l'étoile la plus brillante de la constellation. Elle est également connue sous les noms traditionnels de Metallah, Mothallah, Atria, Ras al Muthallah, Elmuthalleth, Caput Trianguli, Metallakh et Motallakh[1]. Elle partage les noms d'Atria et de Metallah avec Alpha Trianguli Australis.


  1. Source : (en) N. D. Kostjuk, HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index, disponible au centre de données astronomiques de Strasbourg, Voir en ligne.

Liens externes

  • Portail de l’astronomie Portail de l’astronomie
Ce document provient de « Alpha Trianguli ».

Wikimedia Foundation. 2010.

Contenu soumis à la licence CC-BY-SA. Source : Article 2 Tri de Wikipédia en français (auteurs)

Regardez d'autres dictionnaires:

  • Tri-ism — What is Tri ism? = Tri ism is a belief system that focuses around faith in the “Three Personalities Theory” . This theory states that every single person has three different personalities whose struggle for control make them who they are. It is a …   Wikipedia

  • Tri-tip — Beef cut Beef cut: Bottom Sirloin Steak type: Tri tip (also known as: triangle steak ) …   Wikipedia

  • Tri-M — A membership pin awarded to junior inductees of the Tri M Music honor society. Tri M Music Honor Society, formerly known as Modern Music Masters, is a high school and middle school music honor society. Each school has its own chapter, which is… …   Wikipedia

  • Tri-Rail — Northbound Tri Rail arriving at Delray Beach Station. Overview …   Wikipedia

  • Tri-State Airport — Milton J. Ferguson Field …   Wikipedia

  • Tri Tac Games — is a publisher of role playing games based in Pontiac, Michigan. The company is built primarily on the work of Richard Tucholka, its founder and president. Company History Tri Tac Games was founded in 1978 as Tacky Tack Games . Tri Tac is one of… …   Wikipedia

  • Tri Yann — are a French band from Nantes (Breton: Naoned ) in the départment of Loire Atlantique, Brittany, who play traditional Breton Celtic music.The band was founded in 1971 by Jean Chocun, Jean Paul Corbineau and Jean Louis Jossic all of whom remain… …   Wikipedia

  • Tri-State Peak — is a mountain located in the Cumberland Gap National Historical Park, near the saddle of the gap. It gets its name from being on the tri point of the states of Kentucky, Tennessee, and Virginia.The elevation at the tri state marker is 1,990 feet… …   Wikipedia

  • 2-XL — was an educational toy in the shape of a robot that was introduced in 1978. 2 XL was the brainchild of Dr. Michael J. Freeman, who felt that toys should be both fun and educational. The toy was interactive, playing various tracks from a magnetic… …   Wikipedia

  • Tri- — [Gr. tri or L. tri , sometimes through French; akin to L. tres three, and E. three. See {Three}.] [1913 Webster] 1. A prefix meaning three, thrice, threefold; as in tricolored, tridentate. [1913 Webster] 2. (Chem.) A prefix (also used… …   The Collaborative International Dictionary of English

  • Tri-State Racetrack and Gaming Center — Tri State Racetrack, which markets itself under the name Tri State Racetrack and Gaming Center , is a racino located in an enclave of the city limits of Nitro, West Virginia, although it is actually located several miles from that city and is… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”