Datoteka:Tycho-supernova-xray.jpg

Vidi sliku u punoj veličini ‎((2.400 × 2.400 piksela, veličina datoteke: 609 KB, <a href="/index.php/MIME" title="MIME">MIME</a> tip: image/jpeg))

Pogreška pri izradbi sličice: Spremanje smanjene slike ("thumbnail") na ponuđenu mjesto nije moguće.

Ova je datoteka sa stranica Zajedničkog poslužitelja Zaklade Wikimedije i smiju je rabiti drugi projekti. Opis s njezine stranice s opisom datoteke prikazan je ispod.

Sažetak

OpisTycho-supernova-xray.jpg	Tycho's Supernova Remnant. In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became known as Tycho's supernova. More than four centuries later, Chandra's image of the supernova remnant shows an expanding bubble of multimillion degree debris (green and red) inside a more rapidly moving shell of extremely high energy electrons (filamentary blue). As a huge ball of exploding plasma, it was Irving Langmuir who coined the name plasma because of its similarity to blood plasma, and Hannes Alfvén who noted its cellular nature. The filamentary blue outer shell of X-ray emitting high-speed electrons is also a characteristic of plasmas. This is a false-colour x-ray image in which the energy levels (in keV) of the x-rays have been assigned colours as follows: Red 0.95-1.26 keV, Green 1.63-2.26 keV, Blue 4.1-6.1 keV. All x-rays images must use processed colours since x-rays (as are radio waves, infra-red) are invisible to the human eye. But they are not invisible to suitable equipment, such as x-ray telescopes. The red and green bands highlight the expanding cloud of plasma with temperatures in the millions of degrees.
Datum	Fotografirano: 29. travnja 2003.
Izvor	http://chandra.harvard.edu/photo/2005/tycho/; see also https://www.flickr.com/photos/smithsonian/2941525398/
Autor	NASA/CXC/Rutgers/J.Warren & J.Hughes et al.


	Ovo je izabrana slika na Wikipediji na jeziku: engleski (Featured pictures) i smatra se jednom od najboljih slika. Ako smatrate da bi ova datoteka trebala biti izabrana također i na Zajedničkome poslužitelju, slobodno ju predložite. Ako posjedujete fotografiju slične kvalitete koju ste voljni objaviti pod prikladnom licencijom, svakako ju postavite, propisno označite i predložite.

	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.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Originally uploaded on the En-Wiki by en:User:Iantresman 12:40, 23 September 2005

Kliknite na datum/vrijeme kako biste vidjeli datoteku kakva je tada bila.

	Datum/Vrijeme	Minijatura	Dimenzije	Suradnik	Komentar
sadašnja	21:57, 22. prosinca 2005.		2.400 × 2.400 (609 KB)	Solipsist~commonswiki	Larger 2024x2024 jpeg based on 6.3Mb Tiff at source: http://chandra.harvard.edu/photo/2005/tycho/

Na ovu sliku vode poveznice sa sljedećih stranica: