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

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描述

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.

About the object
Object name NGC 454
Object description Interacting Galaxies
Position (J2000) 01 14 26.10
-55 23 40.00
Constellation Phoenix
Distance 150 million light-years (50 million parsecs)
About the data
Data description The Hubble image was created using HST data from proposal 7129: M. Stiavelli (STScI)
Instrument WFPC2
Exposure date(s) March 6, 1997
Exposure time 31 minutes
Filters F450W (B), F606W (V), and F814W (I)
日期
来源 http://hubblesite.org/newscenter/archive/releases/2008/16/image/ag/ (direct link)
作者 NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and M. Stiavelli (STScI)
授权
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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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当前2008年4月24日 (四) 21:152008年4月24日 (四) 21:15版本的缩略图2,289 × 2,289（5.78 MB）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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