Fichier:Spiral Galaxy NGC 300.jpg
Original Fichier (1.500 × 1.200 Pixel, Fichiersgréisst: 1,28 MB, MIME-Typ: image/jpeg)
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Resumé
BeschreiwungSpiral Galaxy NGC 300.jpg |
English: Sometimes, the best way to understand how something works is to take it apart. The same is true for galaxies like NGC 300, which NASA's Spitzer Space Telescope has divided into its various parts. NGC 300 is a face-on spiral galaxy located 7.5 million light-years away in the southern constellation Sculptor.
This false-color image taken by the infrared array camera on Spitzer readily distinguishes the main star component of the galaxy (blue) from its dusty spiral arms (red). The star distribution peaks strongly in the central bulge where older stars congregate, and tapers off along the arms where younger stars reside. Thanks to Spitzer's unique ability to sense the heat or infrared emission from dust, astronomers can now clearly trace the embedded dust structures within NGC 300's arms. When viewed at visible wavelengths, the galaxy's dust appears as dark lanes, largely overwhelmed by bright starlight. With Spitzer, the dust -- in particular organic compounds called polycyclic aromatic hydrocarbons -- can be seen in vivid detail (red). These organic molecules are produced, along with heavy elements, by the stellar nurseries that pepper the arms. The findings provide a better understanding of spiral galaxy mechanics and, in the future, will help decipher more distant galaxies, whose individual components cannot be resolved. This image was taken on Nov. 21, 2003 and is composed of photographs obtained at four wavelengths: 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange) and 8 microns (red). |
Datum | |
Quell | http://www.spitzer.caltech.edu/images/1166-ssc2004-07b-Dissection-of-a-Galaxy-Spiral-Galaxy-NGC-300 |
Auteur | NASA/JPL-Caltech/G. Helou (Caltech) |
Image use policy: http://www.spitzer.caltech.edu/info/18-Image-Use-Policy
Lizenz
Public domainPublic domainfalsefalse |
Diese Datei ist gemeinfrei (public domain), da sie von der NASA erstellt worden ist. Die NASA-Urheberrechtsrichtlinie besagt, dass „NASA-Material nicht durch Urheberrecht geschützt ist, wenn es nicht anders angegeben ist“. (NASA-Urheberrechtsrichtlinie-Seite oder JPL Image Use Policy). | ||
Warnung:
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In dieser Datei abgebildete Objekte
Motiv
11. Mee 2004
MIME-Typ Däitsch
image/jpeg
Versiounen
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Versioun vum | Miniaturbild | Dimensiounen | Benotzer | Bemierkung | |
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aktuell | 19:03, 21. Jun. 2011 | 1.500 × 1.200 (1,28 MB) | Spitzersteph |
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Metadaten
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Numm vum Bild |
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Auteur | Spitzer Space Telescope |
Auteursrechter | http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
Kuerzen Titel |
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Namensnennung/Veröffentlicher | NASA/JPL-Caltech/G. Helou (Caltech) |
Iwwerschrëft | NGC 300 is a face-on spiral galaxy located 7.5 million light-years away in the southern constellation Sculptor. This false-color image taken by the infrared array camera on Spitzer readily distinguishes the main star component of the galaxy (blue) from its dusty spiral arms (red). |
Quell | Spitzer Space Telescope |
Benotzungsbedingungen |
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Erfaassungszäitpunkt | 11. Mee 2004 |
Breet | 1.500 px |
Längt | 1.200 px |
Bite pro Faarfkomponent |
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Aart vun der Kompressioun | LZW |
Pixelzesummesetzung | RGB |
Kameraausriichtung | Normal |
Zuel vun de Komponenten | 3 |
Horizontal Opléisung | 300 dpi |
Vertikal Opléisung | 300 dpi |
Datenausriichtung | Graffe Format |
Benotzt Software | Adobe Photoshop CS3 Macintosh |
Späicherzäitpunkt | 14:40, 5. Jun. 2009 |
Faarfraum | Net kalibréiert |
Kontaktinformatioun |
http://www.spitzer.caltech.edu 1200 E. California Blvd. Pasadena, CA, 91125 USA |
Stéchwierder | NGC 300 |
IIM-Versioun | 2 |