File:Straight to the Milky Way's heart (29743436798).jpg

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The Laser Guide Star (LGS) is launched from the VLT's 8.2-metre Yepun Telescope and aims at the centre of our galaxy, in the heart of the brightest part of the Milky Way. The laser beam is part of the VLT's adaptive optics system. It creates an artificial star at 90 km altitude in the Earth´s mesosphere. This star is used as reference to correct images and spectra for the blurring effect of the atmosphere. The plane of the Milky Way is crossed by prominent dark lanes, huge clouds of interstellar dust that block the visible light. Thanks to the infrared instruments mounted in the Yepun Telescope, astronomers can “see through” and study the complex and turbulent core of our galaxy, where a supermassive black hole is lurking. The ESO's Very Large Telescope is composed by four 8.2-metre Unit Telescopes (UTs, where Yepun is UT4) plus four 1.8-metre movable Auxiliary Telescopes (ATs).

More information: <a href="https://www.eso.org/public/images/huedepohl-02/" rel="nofollow">www.eso.org/public/images/huedepohl-02/</a>

Credit:

G. Hüdepohl (atacamaphoto.com)/ESO
Date
Source Straight to the Milky Way's heart
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@N04/29743436798 (archive). It was reviewed on 2019-01-20 18:03:57 by FlickreviewR 2, who found it to be licensed under the terms of the cc-by-2.0, which is compatible with the Commons. It is, however, not the same license as given above, and it is unknown whether that license ever was valid.

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current10:03, 7 November 2018Thumbnail for version as of 10:03, 7 November 20181,280 × 852 (369 KB)Jo-Jo Eumerus (talk | contribs)Transferred from Flickr via #flickr2commons

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