Datoteka:NGC 1487 HST.jpg
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Sažetak
OpisNGC 1487 HST.jpg |
English: This image, taken by the NASA/ESA Hubble Space Telescope, shows a peculiar galaxy known as NGC 1487, lying about 30 million light-years away in the southern constellation of Eridanus.
Rather than viewing a celestial object, it is actually better to think of this as an event. Here, we are witnessing two or more galaxies in the act of merging together to form a single new galaxy. Each progenitor has lost almost all traces of its original appearance, as stars and gas have been thrown hither and thither by gravity in an elaborate cosmic whirl. Unless one is very much bigger than the other, galaxies are always disrupted by the violence of the merging process. As a result, it is very difficult to determine precisely what the original galaxies looked like and, indeed, how many of them there were. In this case, it is possible that we are seeing the merger of several dwarf galaxies that were previously clumped together in a small group. Although older yellow and red stars can be seen in the outer regions of the new galaxy, its appearance is dominated by large areas of bright blue stars, illuminating the patches of gas that gave them life. This burst of star formation may well have been triggered by the merger. |
Datum | |
Izvor | http://www.spacetelescope.org/images/potw1605a/ |
Autor |
ESA/Hubble & NASA Acknowledgement: Judy Schmidt (Geckzilla) |
Licenciranje
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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1 februar 2016
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trenutno | 13:36, 1 februar 2016 | 1.280 × 1.049 (292 KB) | Jmencisom | User created page with UploadWizard |
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Naslov slike |
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Pripisivanje/Pružalac usluga | ESA/Hubble & NASA Acknowledgement: Judy Schmidt (Geckzilla) |
Izvor | ESA/Hubble |
Uslovi upotrebe |
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Kratki naslov |
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Datum i vrijeme generisanja podataka | 06:00, 1 februar 2016 |
Korišteni softver | Adobe Photoshop CC 2014 (Windows) |
Status autorskih prava | Status autorskih prava nije postavljen |
Jedinstveni ID originalnog dokumenta | xmp.did:52ad30ad-3d08-254c-9d78-ec8cfdd67f6d |
Podaci za kontakt |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
Ključne riječi | NGC 1487 |
IIM verzija | 4 |