NGC 83

NGC 83
Image illustrative de l’article NGC 83
La galaxie elliptique NGC 83
Données d’observation
(Époque J2000.0)
Constellation Andromède
Ascension droite (α) 00h 21m 22,4s[1]
Déclinaison (δ) 22° 26′ 01″ [1]
Magnitude apparente (V) 12,5[2]
13,6 dans la Bande B[2]
Brillance de surface 13,38 mag/am2[2]
Dimensions apparentes (V) 1,5 × 1,5[2]
Décalage vers le rouge +0,020514 ± 0,000052[1]
Angle de position N/A[2]

Localisation dans la constellation : Andromède

(Voir situation dans la constellation : Andromède)
Astrométrie
Vitesse radiale 6 150 ± 16 km/s [1]
Distance 85,66 ± 6,01 Mpc (∼279 millions d'al)[1]
Caractéristiques physiques
Type d'objet Galaxie elliptique
Type de galaxie E[1],[2] (R)S0?[3]
Dimensions environ 41,86 kpc (∼137 000 al)[1]
Découverte
Découvreur(s) John Herschel[3]
Date [3]
Désignation(s) PGC 1371
UGC 206
MCG 4-2-5
CGCG 479.8 [2]
Liste des galaxies elliptiques

NGC 83 est une galaxie elliptique située dans la constellation d'Andromède. Sa vitesse par rapport au fond diffus cosmologique est de 5 808 ± 29 km/s, ce qui correspond à une distance de Hubble de 85,7 ± 6,0 Mpc (∼280 millions d'al)[1]. Le professeur Seligman considère que cette galaxie est lenticulaire[3]. NGC 83 a été découverte par l'astronome britannique John Herschel en 1828.


À ce jour, 14 mesures non basées sur le décalage vers le rouge donnent une distance de 88,736 ± 29,738 Mpc (∼289 millions d'al)[4], ce qui est à l'intérieur des valeurs de la distance de Hubble.

Notes et références

  1. a b c d e f g et h (en) « Results for object NGC 83 », 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 1 à 99 », sur astrovalleyfield.ca (consulté le )
  3. a b c et d (en) Courtney Seligman, NGC 83, « Celestial Atlas Table of Contents » (consulté le )
  4. « Your NED Search Results, Distance Results for NGC 83 » (consulté le )

Voir aussi

Articles connexes

Liens externes

    •  NGC 75  •  NGC 76  •  NGC 77  •  NGC 78  •  NGC 79  •  NGC 80  •  NGC 81  •  NGC 82  •  NGC 83  •  NGC 84  •  NGC 85  •  NGC 86  •  NGC 87  •  NGC 88  •  NGC 89  •  NGC 90  •  NGC 91      

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