NGC 2485

NGC 2485
Image illustrative de l’article NGC 2485
La galaxie spirale NGC 2485.
Données d’observation
(Époque J2000.0)
Constellation Petit Chien
Ascension droite (α) 07h 56m 48,6s[1]
Déclinaison (δ) 07° 28′ 41″ [1]
Magnitude apparente (V) 12,2[2]
13,1 dans la Bande B[2]
Brillance de surface 13,08 mag/am2[2]
Dimensions apparentes (V) 1,6′ × 1,4′[1]
Décalage vers le rouge 0,015341 ± 0,000012[1]
Angle de position 153°[2]

Localisation dans la constellation : Petit Chien

(Voir situation dans la constellation : Petit Chien)
Astrométrie
Vitesse radiale 4 599 ± 4 km/s [1]
Distance 71,29 ± 5,00 Mpc (∼233 millions d'al)[1]
Caractéristiques physiques
Type d'objet Galaxie spirale
Type de galaxie Sa[1],[2],[3]
Dimensions environ 33,90 kpc (∼111 000 al)[1]
Découverte
Découvreur(s) Albert Marth[3]
Date [3]
Désignation(s) PGC 22266
UGC 4112
MCG 1-21-1
CGCG 31-3
IRAS 07541+0736[2]
Liste des galaxies spirales
modifier 

NGC 2485 est une galaxie spirale située dans la constellation du Petit Chien. Sa vitesse par rapport au fond diffus cosmologique est de 4 834 ± 17 km/s, ce qui correspond à une distance de Hubble de 71,3 ± 5,0 Mpc (∼233 millions d'al)[1]. NGC 2485 a été découverte par l'astronome allemand Albert Marth en 1864[3].

La classe de luminosité de NGC 2485 est I et elle présente une large raie HI[1].

Notes et références

  1. ↑ a b c d e f g h i et j (en) « Results for object NGC 2485 », NASA/IPAC Extragalactic Database (consulté le )
  2. ↑ a b c d e et f « Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 2400 à 2499 », sur astrovalleyfield.com (consulté le )
  3. ↑ a b c et d (en) Courtney Seligman, « Celestial Atlas Table of Contents, NGC 2485 » (consulté le ).

Voir aussi

Articles connexes

Liens externes

NGC 2477  •  NGC 2478  •  NGC 2479  •  NGC 2480  •  NGC 2481  •  NGC 2482  •  NGC 2483  •  NGC 2484  •  NGC 2485  •  NGC 2486  •  NGC 2487  •  NGC 2488  •  NGC 2489  •  NGC 2490  •  NGC 2491  •  NGC 2492  •  NGC 2493

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