File:WISE- Andromeda.jpg

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Summary

DescriptionWISE- Andromeda.jpg	English: The immense Andromeda galaxy, also known as Messier 31 (M31), is captured in full in this new image from NASA's Wide-field Infrared Survey Explorer (WISE). The mosaic covers an area equivalent to more than 100 full moons, or five degrees across the sky. WISE used all four of its infrared detectors to capture this picture (3.4- and 4.6-micron light is colored blue; 12-micron light is green; and 22-micron light is red). Blue highlights mature stars, while yellow and red show dust heated by newborn, massive stars. Andromeda is the closest large galaxy to our Milky Way galaxy, and is located 2.5 million light-years from our sun. It is close enough for telescopes to spy the details of its ringed arms of new stars and hazy blue backbone of older stars. Also seen in the mosaic are two satellite galaxies: M32, located just a bit above Andromeda to the left of center, and the fuzzy blue M110, located below the centre of the great spiral arms. These satellites are the largest of several that are gravitationally bound to Andromeda. Andromeda is larger than the Milky Way and contains more stars, but the Milky Way is thought to perhaps have more mass due to its larger proportion of a mysterious substance called dark matter. Both galaxies belong to our so-named Local Group, a collection of more than 50 galaxies, most of which are tiny dwarf systems. In its quest to map the whole sky, WISE will capture the entire Local Group.
Date	17 February 2010
Source	http://www.nasa.gov/mission_pages/WISE/multimedia/pia12832-c.html
Author	NASA/JPL-Caltech/UCLA

Licensing

This file is in the public domain 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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Use of NASA logos, insignia and emblems are restricted per US law 14 CFR 1221.
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The following pages on Schools Wikipedia link to this image (list may be incomplete):

Andromeda Galaxy

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Width	6,666 px
Height	6,666 px
Bits per component	8 8 8
Compression scheme	LZW
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS4 Macintosh
File change date and time	17:05, 10 February 2010
Colour space	sRGB
Image height	6,666 px
Image width	6,666 px
Source	Spitzer Space Telescope
Date and time of digitizing	09:17, 9 February 2010
Date metadata was last modified	09:05, 10 February 2010
Unique ID of original document	xmp.did:67CBC2153E206811910998642D45C4E0
Short title	WISE Infrared View of Andromeda Galaxy and Companions
Keywords	Andromeda Galaxy M31 NGC 224 M32 NGC 221 M110 NGC 205
Contact information	http://www.spitzer.caltech.edu 1200 E. California Blvd. Pasadena, CA, 91125 USA
Usage terms	Public Domain

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