Image:2MASS LSS chart-NEW Nasa.jpg

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Description

Panoramic view of the entire near-infrared sky reveals the distribution of galaxies beyond the Milky Way. The image is derived from the 2MASS Extended Source Catalog (XSC)—more than 1.5 million galaxies, and the Point Source Catalog (PSC)--nearly 0.5 billion Milky Way stars. The galaxies are colour coded by ' redshift' obtained from the UGC, CfA, Tully NBGC, LCRS, 2dF, 6dFGS, and SDSS surveys (and from various observations compiled by the NASA Extragalactic Database), or photo-metrically deduced from the K band (2.2 um). Blue are the nearest sources (z < 0.01); green are at moderate distances (0.01 < z < 0.04) and red are the most distant sources that 2MASS resolves (0.04 < z < 0.1). The map is projected with an equal area Aitoff in the Galactic system (Milky Way at centre).
Source

"Large Scale Structure in the Local Universe: The 2MASS Galaxy Catalog", Jarrett, T.H. 2004, PASA, 21, 396
Date

2004
Author

IPAC/Caltech, by Thomas Jarrett
Permission
( Reusing this image)

see below

Information cropped from image

Title: "Large Scale Structure in the Local Universe"

Legend: "image shows 2MASS galaxies colour coded by redshift (Jarrett 2004); familiar galaxy clusters/superclusters are labelled (numbers in parenthesis represent redshift). Graphic created by T. Jarett (IPAC/Caltech)"


Public domain
 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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File history

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Date/Time Dimensions User Comment
current 17:27, 22 January 2008 1,239×627 (1.35 MB) Papa November (Cropped to remove border using GIMP. No copyright claimed for non-creative derivative work)
16:23, 3 July 2007 1,253×756 (1.35 MB) QWerk (Graphic by Thomas Jarrett (IPAC/Caltech))
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Metadata

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Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used GIMP 2.4.2
File change date and time 17:28, 22 January 2008
Colour space 65535
Retrieved from "http://en.wikipedia.org/wiki/Image:2MASS_LSS_chart-NEW_Nasa.jpg"
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