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File:Andromeda galaxy.jpg

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Summary

Description
English: This image is a Galaxy Evolution Explorer observation of the large galaxy in Andromeda, Messier 31. The Andromeda galaxy, spanning 260,000 light-years across, is the most massive in the local group of galaxies that includes our Milky Way. Andromeda is the nearest large galaxy to our own at approximately 2.5 million light-years away. The image is a mosaic of 10 separate Galaxy Evolution Explorer images taken in September, 2003. This image is a two-color composite, where blue represents far-ultraviolet light and red is near-ultraviolet light, and shows blue regions of young, hot, high mass stars tracing out the spiral arms where star formation is occurring, and the central orange-white "bulge" of old, cooler stars formed long ago. The star forming arms of Messier 31 are unusual in being quite circular rather than the usual spiral shape. Several companion galaxies can also be seen. These include Messier 32, a dwarf elliptical galaxy directly below the central bulge and just outside the spiral arms, and Messier 110 (M110), which is above and to the right of the center. M110 has an unusual far ultraviolet bright core in an otherwise "red," old star halo. Many other regions of star formation can be seen far outside the main body of the galaxy.
العربية: مجرة أندروميدا، النواة في الوسط والأذرع الحلزونية تشكل قرصًا، وتُرى تجمعات نجمية كروية حول القرص.
Date (released)
Source https://photojournal.jpl.nasa.gov/catalog/PIA04921
Author NASA/JPL/California Institute of Technology
This image or video was catalogued by Jet Propulsion Laboratory of the United States National Aeronautics and Space Administration (NASA) under Photo ID: PIA04921.

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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

ultraviolet (uv) image of Andromeda (M31), with near uv shown as red, far uv shown as blue

10 December 2003

image/jpeg

68fa079a55e808ce74274fa6a1172a6962743cf7

8,367,356 byte

6,200 pixel

6,200 pixel

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Date/TimeThumbnailDimensionsUserComment
current20:43, 12 May 2019Thumbnail for version as of 20:43, 12 May 20196,200 × 6,200 (7.98 MB)FriedrichKiefererBetter quality.
12:14, 13 November 2004Thumbnail for version as of 12:14, 13 November 20046,200 × 6,200 (4.13 MB)Duffman~commonswiki

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