Fichier:Hubble Interacting Galaxy NGC 454 (2008-04-24).jpg

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Description

NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas-rich blue galaxy. The system is in the early stages of an interaction that has severely distorted both components. The three bright blue knots of very young stars to the left of the two main components are probably part of the irregular blue galaxy. Although the dust lanes that stretch all the way to the center of the elliptical galaxy suggest that gas has penetrated that far, no signs of star formation or nuclear activity are visible. The pair is approximately 164 million light-years away.

This image is part of a large collection of 59 images of merging galaxies taken by the Hubble Space Telescope and released on the occasion of its 18th anniversary on 24th April 2008.

Concernant l’objet
Nom de l’objet NGC 454
Description de l’objet Interacting Galaxies
Position (J2000) 01 14 26.10
-55 23 40.00
Constellation Phoenix
Distance 150 million light-years (50 million parsecs)
Concernant les données
Description des données The Hubble image was created using HST data from proposal 7129: M. Stiavelli (STScI)
Instrument WFPC2
Date(s) d’exposition March 6, 1997
Durée d’exposition 31 minutes
Filtres F450W (B), F606W (V), and F814W (I)
Date
Source http://hubblesite.org/newscenter/archive/releases/2008/16/image/ag/ (direct link)
Auteur NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and M. Stiavelli (STScI)
Autorisation
(Réutilisation de ce fichier)
Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.
For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
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Date et heureVignetteDimensionsUtilisateurCommentaire
actuel24 avril 2008 à 23:15Vignette pour la version du 24 avril 2008 à 23:152 289 × 2 289 (5,78 Mio)とある白い猫{{Information |Description=NGC 454 is galaxy pair comprising a large red elliptical galaxy and an irregular gas-rich blue galaxy. The system is in the early stages of an interaction that has severely distorted both components. The three bright blue knots

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