File:2MASS LSS chart-NEW Nasa.jpg
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Summary
editDescription2MASS LSS chart-NEW Nasa.jpg |
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
editTitle: "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
editPublic domainPublic domainfalsefalse |
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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Annotations InfoField | This image is annotated: View the annotations at Commons |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:27, 22 January 2008 | 1,239 × 627 (1.35 MB) | Papa November (talk | contribs) | 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 (talk | contribs) | Graphic by Thomas Jarrett (IPAC/Caltech) |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | GIMP 2.4.2 |
File change date and time | 17:28, 22 January 2008 |
Color space | Uncalibrated |
Image width | 1,253 px |
Image height | 756 px |
Date and time of digitizing | 14:25, 25 September 2006 |
Date metadata was last modified | 14:25, 25 September 2006 |