File:Laser Vision (23025534000).jpg
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Summary[edit]
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| Description |
This image shows one of the four Unit Telescopes that make up ESO’s Very Large Telescope (VLT) at Paranal. Each of the 8.2-metre telescopes was given a name in the Mapuche language spoken by indigenous people from the Southern Chile. The Unit Telescope in this image is called Yepun, which means Venus. The smaller telescope beside Yepun is one of four Auxiliary Telescopes that have a diameter of 1.8 metres. These can be combined with the Unit Telescopes to make the Very Large Telescope Interferometer (VLTI). Yepun is equipped with the Laser Guide Star Facility that is caught in action in this picture. The laser beam’s colour is precisely tuned to energise a layer of sodium atoms in the atmosphere which creates a small bright spot — an artificial star. This star can be used as a reference to work out how much the atmosphere is distorting the light from actual stars — a process called adaptive optics — which helps to develop clear images. Above Yepun you can see part of the Milky Way galaxy stretching across the southern sky. The brighter regions on the lower right correspond to the Large Magellanic Cloud and Small Magellanic Cloud — two satellite galaxies of the Milky Way. More information: http://www.eso.org/public/images/potw1547a/ Credit: ESO/Y. Beletsky |
| Date | |
| Source | Laser Vision |
| Author | European Southern Observatory |
Licensing[edit]
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was originally posted to Flickr by European Southern Observatory at https://flickr.com/photos/51207680@N04/23025534000 (archive). It was reviewed on 7 November 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 10:36, 7 November 2018 | | 1,280 × 1,860 (706 KB) | Jo-Jo Eumerus (talk | contribs) | Transferred from Flickr via #flickr2commons |
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