Image:StephansQuinteta.jpg

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[edit] Summary

From Spitzer Press Release:

The central region of Stephan's Quintet, showing the complex web of galaxy-galaxy and galaxy-intergalactic medium interactions. The intergalactic shock wave, triggered by the 1000 km/s infall velocity of the intruder galaxy NGC7319b, is delineated by the ridge of Hydrogen emission (shown in green) which runs vertically through this image. NGC7319b is the compact blob, seen both in optical light (coded blue) and in infrared continuum (coded red) immediately to the right of this ridge.

Image: NASA/JPL-Caltech

This image is composed of three data sets: visible red light (blue) and visible light called H-alpha (green) from the Calar Alto Observatory in Spain, operated by the Max Planck Institute in Germany; and 8-micron infrared light (red) from Spitzer's infrared array camera.

Description	Stephan's Quintet, NGC7317, NGC7318A, NGC7318B, NGC7319, NGC7320
Source	http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2006-08a
Date	2006/03/02
Author	P. Appleton (SSC/Caltech) K. Xu (SSC/Caltech) W. Reach (SSC/Caltech) M. Dopita (Australian National University) Y. Gao (Purple Mountain Observatory, China) N. Lu (SSC/Caltech) C. Popescu (Max Planck Institut fuer Kernphysik, Heidelberg, Germany) J. Sulentic (University of Alabama) R. Tuffs (Max Planck Institut fuer Kernphysik, Heidelberg, Germany) M. Yun (University of Massachusetts)
Permission (Reusing this image)	http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml

[edit] Licensing

This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA copyright policy page or JPL Image Use Policy)

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Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not in the public domain.
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	Date/Time	Dimensions	User	Comment
current	16:08, 10 April 2007	2,094×2,093 (285 KB)	Clh288 (Talk \| contribs)	(== Summary == From Spitzer Press Release: : The central region of Stephan's Quintet, showing the complex web of galaxy-galaxy and galaxy-intergalactic medium interactions. The intergalactic shock wave, triggered by the 1000 km/s infall velocity of the i)