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File:Hubble Interacting Galaxy Arp 148 (2008-04-24).jpg

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Arp 148 is the staggering aftermath of an encounter between two galaxies, resulting in a ring-shaped galaxy and a long-tailed companion. The collision between the two parent galaxies produced a shockwave effect that first drew matter into the center and then caused it to propagate outwards in a ring. The elongated companion perpendicular to the ring suggests that Arp 148 is a unique snapshot of an ongoing collision. Infrared observations reveal a strong obscuration region that appears as a dark dust lane across the nucleus in optical light. Arp 148 is nicknamed Mayall s object and is located in the constellation of Ursa Major, the Great Bear, approximately 500 million light-years away. This interacting pair of galaxies is included in Arp's catalog of peculiar galaxies as number 148.

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 Arp 148, VV 032, Mayall's Object, MCG+07-23-019
Object description Interacting Galaxies
Position (J2000) 11 03 53.95
+40 50 59.90
Constellation Ursa Major
Distance 450 million light-years (150 million parsecs)
About the data
Data description The Hubble image was created using HST data from proposals 10592, 11091, and 6276: A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University), K. Noll (STScI), and J. Westphal (Caltech)
Instrument WFPC2, ACS/WFC
Exposure date(s) October 9/10, 1995; November 20, 2005; and April 27-29, 2007
Exposure time 10.3 hours
Filters F336W (U), F450W (B), F606W (V), and F814W (I)
Data 24 aprile 2008 (released)
Fonte http://hubblesite.org/newscenter/archive/releases/2008/16/image/aa/ (direct link)
Autore NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University)
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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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attuale21:15, 24 apr 2008Miniatura della versione delle 21:15, 24 apr 20081 027 × 1 027 (892 KB)とある白い猫{{Information |Description= {{Hubble |name=Arp 148, VV 032, Mayall's Object, MCG+07-23-019 |description=Interacting Galaxies |position=11 03 53.95<br>+40 50 59.90 |constellation=Ursa Major |distance=450 million light-years (150 million parsecs)

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