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Galaxies of the Infrared Sky
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Galaxies of the Infrared Sky

This panoramic view of the entire sky reveals the distribution of galaxies beyond our Milky Way galaxy, which astronomers call extended sources, as observed by Two Micron All-Sky Survey. The image is constructed from a database of over 1.6 million galaxies listed in the survey's Extended Source Catalog; more than half of the galaxies have never before been catalogued. The image is a representation of the relative brightnesses of these million-plus galaxies, all observed at a wavelength of 2.2 microns. The brightest and nearest galaxies are represented in blue, and the faintest, most distant ones are in red. This color scheme gives insights into the three dimensional large-scale structure of the nearby universe with the brightest, closest clusters and superclusters showing up as the blue and bluish-white features. The dark band in this image shows the area of the sky where our Milky Way galaxy blocks our view of distant objects, which, in this projection, lies predominantly along the edges of the image.

Date
April 13, 2003
Mapmaker / publisher
2MASS/T. H. Jarrett, J. Carpenter, & R. Hurt
Archive
Wikimedia Commons
Type
chart
Original size
4,600 × 2,300 pixels

Public domain

Reason: public domain: author.

This status rests on the map's publication history, as researched by Wikimedia Commons. Check it before commercial use.

Read from: Commons licence category: PD-author; no CC BY, CC BY-SA, GFDL or deletion tag on the file page.

Credit line

"Galaxies of the Infrared Sky" (April 13, 2003). 2MASS/T. H. Jarrett, J. Carpenter, & R. Hurt, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Galaxies_of_the_Infrared_Sky_.jpg

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