IC 5244

IC 5244
Image illustrative de l’article IC 5244
La galaxie spirale IC 5244 par le relevé DSS.
Données d’observation
(Époque J2000.0)
Constellation Toucan
Ascension droite (α) 22h 44m 13,7098s[1]
Déclinaison (δ) −64° 02′ 35,768″
Magnitude apparente (V) 12,6[2]
13,4 dans la Bande B[2]
Brillance de surface 12,80 mag/am2[2]
Dimensions apparentes (V) 1,4′ × 1,0′ [2]
Décalage vers le rouge 0,011599 ± 0,000027[1]
Angle de position 178°[2]

Localisation dans la constellation : Toucan

(Voir situation dans la constellation : Toucan)
Astrométrie
Vitesse radiale 3 477 ± 8 km/s [1]
Distance 49,53 ± 3,47 Mpc (∼162 millions d'al) [1]
Caractéristiques physiques
Type d'objet Galaxie spirale
Type de galaxie Sb[1],[2],[3] Sb?[4]
Dimensions environ 71,20 kpc (∼232 000 al)[1],[a]
Découverte
Découvreur(s) DeLisle Stewart[4]
Date [4]
Désignation(s) PGC 69620
ESO 109-15
AM 2230-645
IRAS 22306-6457[2] IRAS F22408-6418
HIPASS J2243-64[1]
Liste des galaxies spirales
modifier 

IC 5244 est une vaste galaxie spirale située dans la constellation du Toucan. Sa vitesse par rapport au fond diffus cosmologique est de 3 358 ± 12 km/s, ce qui correspond à une distance de Hubble de 49,5 ± 3,5 Mpc (∼161 millions d'al)[1]. Cette galaxie a été découverte par l'astronome américain DeLisle Stewart en [4].

La classe de luminosité d'IC 5244 est II et elle présente une large raie HI[1]. Elle renferme également des régions d'hydrogène ionisé[1].

Groupe de NGC 7329

Selon A. M. Garcia, IC 5244 est membre du groupe de NGC 7329. Ce groupe de galaxies renferme au moins 11 membres. Les autres galaxies sont NGC 7329, NGC 7358, NGC 7408, NGC 7417, les galaxies IC 5222, IC 5227, IC 5250, IC 5266 et IC 5272 de l'Index Catalogue, et ESO 109-32[5].

Notes et références

Notes

  1. ↑ Diamètre isophote du relevé ESO-LV Quick Blue IIa-O.

Références

  1. ↑ a b c d e f g h i et j (en) « Results for object IC 5244 », 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», IC 5200 à 5299 », sur astrovalleyfield.com (consulté le )
  3. ↑ (en) « IC 5244 », HyperLeda (consulté le )
  4. ↑ a b c et d (en) Courtney Seligman, « Celestial Atlas Table of Contents, IC 5200 - 5249 » (consulté le ).
  5. ↑ A.M. Garcia, « General study of group membership. II - Determination of nearby groups », Astronomy and Astrophysics Supplement Series, vol. 100 #1,‎ , p. 47-90 (Bibcode 1993A&AS.100..47G)

Voir aussi

Articles connexes

Liens externes

Objets de l'Index Catalogue

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