Fayl:Ssc2003-06c.jpg

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The spiral arms of the nearby galaxy Messier 81 are highlighted in this NASA Spitzer Space Telescope image. Located in the northern constellation of Ursa Major (which also includes the Big Dipper), this galaxy is easily visible through binoculars or a small telescope. M81 is located at a distance of 12 million light-years.

Because of its proximity, M81 provides astronomers with an enticing opportunity to study the anatomy of a spiral galaxy in detail. The unprecedented spatial resolution and sensitivity of Spitzer at infrared wavelengths show a clear separation between the several key constituents of the galaxy: the old stars, the interstellar dust heated by star formation activity, and the embedded sites of massive star formation. The infrared images also permit quantitative measurements of the galaxy's overall dust content, as well as the rate at which new stars are being formed.
Sanasi
Manba http://www.spitzer.caltech.edu/Media/releases/ssc2003-06/ssc2003-06c.shtml (TIFF image)
Muallif NASA/JPL-Caltech/S. Willner (Harvard-Smithsonian Center for Astrophysics)
Ruxsat
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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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tasvirlangan ob'ekt

6 Noyabr 2003

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Fayl tarixi

Faylning biror paytdagi holatini koʻrish uchun tegishli sana/vaqtga bosingiz.

Sana/VaqtMiniaturaOʻlchamlariFoydalanuvchiIzoh
joriy16:14, 3-Mart 201016:14, 3-Mart 2010 dagi versiya uchun tasvir1 358 × 1 030 (1,27 MB)TryphonRemoved border from TIFF file, then converted to JPEG, from http://www.spitzer.caltech.edu/Media/releases/ssc2003-06/ssc2003-06c.shtml (http://ipac.jpl.nasa.gov/media_images/ssc2003-06c.tif).
07:05, 30-May 200707:05, 30-May 2007 dagi versiya uchun tasvir1 500 × 1 200 (1,11 MB)ArchetypeRyan~commonswikiThis is an image of the spiral galaxy M81 taken by the Spitzer Space Telescope and distributed by NASA. It was provided by the Spitzer Space Telescope Newsroomhttp://www.spitzer.caltech.edu/Media/releases/ssc2003-06/ssc2003-06c.shtml.

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