NGC 5164

NGC 5164
Image illustrative de l’article NGC 5164
La galaxie spirale barrée NGC 5164.
Données d’observation
(Époque J2000.0)
Constellation Grande Ourse
Ascension droite (α) 13h 27m 11,9s[1]
Déclinaison (δ) 55° 29′ 14″ [1]
Magnitude apparente (V) 13,7[2]
14,5 dans la Bande B [2]
Brillance de surface 13,59 mag/am2[2]
Dimensions apparentes (V) 1,0′ × 0,9′[2]
Décalage vers le rouge 0,024011 ± 0,000013[1]
Angle de position 27°[2]

Localisation dans la constellation : Grande Ourse

(Voir situation dans la constellation : Grande Ourse)
Astrométrie
Vitesse radiale 7 198 ± 4 km/s [1]
Distance 108,18 ± 7,57 Mpc (∼353 millions d'al)[1]
Caractéristiques physiques
Type d'objet Galaxie spirale barrée
Type de galaxie SBb[1],[2],[3] SBb?[4]
Dimensions environ 36,03 kpc (∼118 000 al)[1]
Découverte
Découvreur(s) William Herschel[4]
Date [4]
Désignation(s) PGC 47124
UGC 8458
MCG 9-22-63
MK 257
CGCG 271-41
KCPG 376[2]
Liste des galaxies spirales barrées
modifier 

NGC 5164 est une galaxie spirale barrée située dans la constellation de la Grande Ourse. Sa vitesse par rapport au fond diffus cosmologique est de 7 335 ± 10 km/s, ce qui correspond à une distance de Hubble de 108,2 ± 7,6 Mpc (∼353 millions d'al)[1]. NGC 5164 a été découverte par l'astronome germano-britannique William Herschel en 1789.

La classe de luminosité de NGC 5164 est II[1] et c'est une galaxie dont le noyau brille dans le domaine de l'ultraviolet. Elle est inscrite dans le catalogue de Markarian sous la cote Mrk 257 (MK 452)[2].

Supernova

La supernova 2011em a été découverte dans NGC 5164 le par l'astronome amateur japonais Masaki Tsuboi, président de la Société astronomique d'Hiroshima[5]. Cette supernova était de type Ia[6].

Notes et références

  1. ↑ a b c d e f g h et i (en) « Results for object NGC 5164 », NASA/IPAC Extragalactic Database (consulté le ).
  2. ↑ a b c d e f g et h « Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 5100 à 5199 », sur astrovalleyfield.com (consulté le )
  3. ↑ (en) « NGC 5164 sur HyperLeda » (consulté le )
  4. ↑ a b et c (en) Courtney Seligman, « Celestial Atlas Table of Contents, NGC 5164 » (consulté le ).
  5. ↑ (en) « JPL Small-Body Database Browser, 10884 Tsuboimasaki (1996 VD9) » (consulté le )
  6. ↑ (en) « Bright Supernovae - 2011 » (consulté le )

Voir aussi

Articles connexes

Liens externes

    •  NGC 5156  •  NGC 5157  •  NGC 5158  •  NGC 5159  •  NGC 5160  •  NGC 5161  •  NGC 5162  •  NGC 5163  •  NGC 5164  •  NGC 5165  •  NGC 5166  •  NGC 5167  •  NGC 5168  •  NGC 5169  •  NGC 5170  •  NGC 5171  •  NGC 5172      

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