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IC 2602

IC 2602

Amas ouvert[1]Voir et modifier les données sur Wikidata

Localisation
Ascension droite
160,74 °Voir et modifier les données sur Wikidata
Déclinaison
−64,4 °Voir et modifier les données sur Wikidata
Époque
Constellation
Spectrographie
Magnitude apparente
1,9 (bande V (d))Voir et modifier les données sur Wikidata
Astrométrie
Vitesse radiale
17,43 km/s[4]Voir et modifier les données sur Wikidata
Parallaxe
6,57 mas[4]Voir et modifier les données sur Wikidata
Distance au Soleil
543,78 al[5]Voir et modifier les données sur Wikidata
Caractéristiques physiques
Métallicité
−0,02[6],[7]Voir et modifier les données sur Wikidata
Exploration
Découvreur
Date de découverte
Identifiants
Simbad

IC 2602 (également connu sous l'appellation Amas Theta Carinae ou Pléiades du Sud) est un amas ouvert situé dans la constellation de la Carène. Il fut découvert par l'Abbé Lacaille en 1751 depuis l'Afrique du Sud. L'amas est à une distance d'environ 479 années-lumière de la Terre, et peut être visible à l'œil nu. Les Pléiades du Sud (IC 2602) ont une magnitude apparente globale de 1,9 (ce qui est 70 % plus faible que les Pléiades de la constellation du Taureau), et contiennent environ 60 étoiles. Theta Carinae, qui est l'étoile la plus brillante de l'amas ouvert, est une étoile de troisième magnitude avec une magnitude apparente de +2,74. Toutes les autres étoiles de l'amas sont de cinquième magnitude ou plus faibles encore. Comme les Pléiades de la constellation du Taureau, les Pléiades du Sud occupent une part non négligeable du ciel, environ 50 minutes d'arc. Ainsi, il est préférable de les observer avec de grandes jumelles, ou un télescope à grand oculaire.

Notes et références

  1. SIMBAD Astronomical Database (catalogue).Voir et modifier les données sur Wikidata
  2. (en) Zhen-Yu Wu, Xu Zhou, Jun Ma et Cui-Hua Du, « The orbits of open clusters in the Galaxy », Monthly Notices of the Royal Astronomical Society, OUP, vol. 399, no 4,‎ , p. 2146–2164 (ISSN 0035-8711 et 1365-2966, OCLC 10340650, DOI 10.1111/J.1365-2966.2009.15416.X, arXiv 0909.3737, lire en ligne).Voir et modifier les données sur Wikidata
  3. VizieR (catalogue astronomique).Voir et modifier les données sur Wikidata
  4. a et b (en) « Gaia Data Release 2. Observational Hertzsprung-Russell diagrams », Astronomy and Astrophysics, EDP Sciences, vol. 616,‎ (ISSN 0004-6361, 0365-0138, 1432-0746 et 1286-4846, OCLC 1518497, DOI 10.1051/0004-6361/201832843, arXiv 1804.09378).Voir et modifier les données sur Wikidata
  5. (en) Pandey A. K., Sandhu T. S., Sagar R. et Battinelli P., « Integrated parameters of star clusters: a comparison of theory and observations », Monthly Notices of the Royal Astronomical Society, OUP, vol. 403,‎ , p. 1491–1506 (ISSN 0035-8711 et 1365-2966, OCLC 10340650, DOI 10.1111/J.1365-2966.2009.16213.X, arXiv 1001.2624).Voir et modifier les données sur Wikidata
  6. (en) U. Heiter, C. Soubiran, M. Netopil et E. Paunzen, « On the metallicity of open clusters », Astronomy and Astrophysics, EDP Sciences, vol. 561,‎ , p. 93–93 (ISSN 0004-6361, 0365-0138, 1432-0746 et 1286-4846, OCLC 1518497, DOI 10.1051/0004-6361/201322559, arXiv 1311.2306).Voir et modifier les données sur Wikidata
  7. (en) M. Netopil, E. Paunzen, U. Heiter et C. Soubiran, « On the metallicity of open clusters », Astronomy and Astrophysics, EDP Sciences, vol. 585,‎ (ISSN 0004-6361, 0365-0138, 1432-0746 et 1286-4846, OCLC 1518497, DOI 10.1051/0004-6361/201526370, arXiv 1511.08884).Voir et modifier les données sur Wikidata

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