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Gamma Aquilae

Gamma Aquilae
Behaketa
Distantzia Lurretik178,894 pc
Itxurazko magnitudea (V)2,72, 5,93, 4,23, 1,65, 0,87, 2,223692, 0,29, −0,4 eta −0,58
Magnitude absolutua−2,695
Mota espektralaK3II
Metaltasuna−0,29
KonstelazioaAquila (konstelazioa)
Abiadura erradiala−2,693 km/s
Igoera zuzena296,56491230928 °
Deklinazioa10,61325872263 °
Ezaugarri fisikoak
Erradioa95 Eguzki erradio
Diametroa128.000.000 km
Izendapenak

Gamma Aquilae (γ Aquilae/γ Aql/HD 186791) Aquila konstelazioko izarra da. Begi hutsez ikus daiteke 2.712ko ikusmen-magnitudea izanda.[1] Paralaxiaren neurketetan oinarrituta, 395 argi urteko distantziara dago.[2] Eguzkitik gertuago doa, −2.8 km/s-ko abiadura erradialarekin.[3] Tarazed izen tradizionala du.[4] Bere izena Šāhīn tarāzū esaldi pseudo-arabieratik dator, "Oreka" esan nahi duena; izen honek Altairrek, Alshainek eta Tarazedek osatzen duten balantzari egiten dio erreferentzia.

Erreferentziak

  1. Cousins, A. W. J.. (1984). «Standardization of Broadband Photometry of Equatorial Standards» South African Astronomical Observatory Circulars 8: 59. Bibcode1984SAAOC...8...59C..
  2. van Leeuwen, F.. «Validation of the new Hipparcos reduction» Astronomy and Astrophysics 474 (2): 653–664.  doi:10.1051/0004-6361:20078357. Bibcode2007A&A...474..653V..
  3. Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C.. «Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters» Astronomy and Astrophysics 430 (1): 165–186.  doi:10.1051/0004-6361:20041272. Bibcode2005A&A...430..165F..
  4. Kunitzsch, Paul; Smart, Tim. (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations. (2. argitaraldia) Cambridge, Massachusetts: Sky Pub ISBN 978-1-931559-44-7..

Kanpo estekak


Astronomia Artikulu hau astronomiari buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz.

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