File:Four lasers light up Paranal (45564317841).jpg
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DescriptionFour lasers light up Paranal (45564317841).jpg |
This photo taken by ESO Photo Ambassador Petr Horálek shows three of ESO's unit telescopes that make up the Very Large Telescope. Unit telescope 4 is showing off its laser guide star system that is used to correct for the effects of the Earth's atmosphere. Each beam creates a glowing spot — an artificial star — in the Earth’s atmosphere by exciting a layer of sodium atoms at an altitude of 90 km. These Laser Guide Stars (LGS) is part of the VLT’s adaptive optics system. The light coming back from the artificial star is used as a reference to control the deformable mirrors and remove the effects of atmospheric distortions, producing astronomical images almost as sharp as if the telescope were in space. More information: https://www.eso.org/public/images/2017_11_18_upr_IMG_3305-laser-ok-CC/ Credit: ESO/P. Horálek |
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Source | Four lasers light up Paranal |
Author | European Southern Observatory |
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This image was originally posted to Flickr by European Southern Observatory at https://flickr.com/photos/51207680@N04/45564317841 (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. |
7 November 2018
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current | 10:01, 7 November 2018 | 1,280 × 802 (279 KB) | Jo-Jo Eumerus (talk | contribs) | Transferred from Flickr via #flickr2commons |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Credit/Provider | ESO/P. Horálek |
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Source | European Southern Observatory |
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Date and time of data generation | 16:35, 24 October 2018 |
Software used | Adobe Photoshop CC (Windows) |
File change date and time | 13:18, 23 December 2017 |
Serial number of camera | 023023003311 |
Date and time of digitizing | 01:47, 19 November 2017 |
Date metadata was last modified | 14:18, 23 December 2017 |
Unique ID of original document | 176915FDADA170CE93AFBDD4761897FB |
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Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |