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File:2MASS LSS chart-NEW Nasa.jpg

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Summary

Description
English: 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 color coded by redshift (numbers in parentheses) 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 μm). Blue/purple 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 center).
Date
Source "Large Scale Structure in the Local Universe: The 2MASS Galaxy Catalog", Jarrett, T.H. 2004, PASA, 21, 396
Author IPAC/Caltech, by Thomas Jarrett
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Information cropped from image

Title: "Large Scale Structure in the Local Universe"

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

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Captions

2MASS Near-Infrared view of the sky

Items portrayed in this file

depicts

Local Universe

media type

image/jpeg

checksum

5fb74aa8c9a3e1e31757506318472762b83a0838

determination method or standard: SHA-1

data size

1,419,106 byte

height

627 pixel

width

1,239 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current17:27, 22 January 2008Thumbnail for version as of 17:27, 22 January 20081,239 × 627 (1.35 MB)Papa NovemberCropped to remove border using GIMP. No copyright claimed for non-creative derivative work
16:23, 3 July 2007Thumbnail for version as of 16:23, 3 July 20071,253 × 756 (1.35 MB)QWerkGraphic by Thomas Jarrett (IPAC/Caltech)

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