NGC 6105

NGC 6105
Image illustrative de l’article NGC 6105
La galaxie lenticulaire NGC 6105.
Données d’observation
(Époque J2000.0)
Constellation Couronne boréale
Ascension droite (α) 16h 17m 09,3s[1]
Déclinaison (δ) 34° 52′ 44″ [1]
Magnitude apparente (V) 14,4 [2]
15,3 dans la Bande B [2]
Brillance de surface 12,85 mag/am2[2]
Dimensions apparentes (V) 0,6 × 0,4 [2]
Décalage vers le rouge 0,029277 ± 0,000010[1]
Angle de position 138°[2]

Localisation dans la constellation : Couronne boréale

(Voir situation dans la constellation : Couronne boréale)
Astrométrie
Vitesse radiale 8 777 ± 3 km/s [1]
Distance 130,13 ± 9,11 Mpc (∼424 millions d'al)[1]
Caractéristiques physiques
Type d'objet Galaxie lenticulaire
Type de galaxie S0[1] SBa[3],[2] SBa/R[4]
Dimensions environ 23,14 kpc (∼75 500 al)[1]
Découverte
Découvreur(s) Édouard Stephan[3]
Date [3]
Désignation(s) PGC 57716
MCG 6-36-13
CGCG 196-23
NPM1G +35.0367
KUG 1615+350B[2]
Liste des galaxies lenticulaires

NGC 6105 est une galaxie lenticulaire située dans la constellation de la Couronne boréale. Sa vitesse par rapport au fond diffus cosmologique est de 8 823 ± 4 km/s, ce qui correspond à une distance de Hubble de 130,1 ± 9,1 Mpc (∼424 millions d'al)[1]. NGC 6105 a été découverte par l'astronome français Édouard Stephan en .

Aucun bras spiral n'est visible sur l'image obtenue des données du relevé SDSS (voir l'encadré ci-contre à droite), aussi, malgré la classification de spirale barrée (SBa) par trois sources consultées, la classification de galaxie lenticulaire (S0) préconisée par la base de données NASA/IPAC décrit mieux cette galaxie. Il faudrait cependant ajouter la caractéristique barrée, car une barre traversant le centre de NGC 6105 est clairement visible. On pourrait aussi dire raisonnablement qu'elle présente un anneau externe, comme indiqué par la base de données HyperLeda.

NGC 6105 une galaxie active de type Seyfert 1.5[1].

À ce jour, une mesure non basée sur le décalage vers le rouge (redshift) donne une distance d'environ 129,000 Mpc (∼421 millions d'al)[5]. Cette valeur est à l'intérieur de la distance de Hubble.

Notes et références

  1. a b c d e f g h et i (en) « Results for object NGC 6105 », NASA/IPAC Extragalactic Database (consulté le )
  2. a b c d e f et g « Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 6100 à 6199 », sur astrovalleyfield.ca (consulté le )
  3. a b et c (en) Courtney Seligman, « Celestial Atlas Table of Contents, NGC 6105 » (consulté le )
  4. (en) « NGC 6105 », HyperLeda (consulté le )
  5. « Your NED Search Results. Distance Results for NGC 6105 », sur ned.ipac.caltech.edu (consulté le )

Voir aussi

Articles connexes

Liens externes

    •  NGC 6097  •  NGC 6098  •  NGC 6099  •  NGC 6100  •  NGC 6101  •  NGC 6102  •  NGC 6103  •  NGC 6104  •  NGC 6105  •  NGC 6106  •  NGC 6107  •  NGC 6108  •  NGC 6109  •  NGC 6110  •  NGC 6111  •  NGC 6112  •  NGC 6113      

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