File:NGC 520.tif
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Size of this JPG preview of this TIF file: 600 × 600 pixels. Other resolutions: 240 × 240 pixels | 480 × 480 pixels | 959 × 959 pixels.
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DescriptionNGC 520.tif |
English: NGC 520 — also known as Arp 157 — looks like a galaxy in the midst of exploding. In reality, it’s the exact opposite. Two enormous spiral galaxies are crashing into each other, melding and forming a new conglomerate. This happens slowly, over millions of years — the whole process started some 300 million years ago. The object, about 100 000 light-years across, is now in the middle stage of the merging process, as the two nuclei haven’t merged yet, but the two discs have. The merger features a tail of stars and a prominent dust lane. NGC 520 is one of the brightest interacting galaxies in the sky and lies in the direction of Pisces (the Fish), approximately 100 million light-years from Earth.
This image was taken by the ESO Faint Object Spectrograph and Camera attached to the 3.6-metre telescope at La Silla in Chile. It is based on data obtained through B, V, R and H-alpha filters. |
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Date | |||||
Source | http://www.eso.org/public/images/potw1048a/ | ||||
Author | ESO | ||||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:44, 29 November 2010 | 959 × 959 (1.87 MB) | Jmencisom (talk | contribs) | {{Information |Description={{en|1=NGC 520 — also known as Arp 157 — looks like a galaxy in the midst of exploding. In reality, it’s the exact opposite. Two enormous spiral galaxies are crashing into each other, melding and forming a new conglomerate |
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Width | 959 px |
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Height | 959 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 91 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 17:00, 15 June 2010 |
Color space | Uncalibrated |