File:Take a peek inside (potw2244a).tiff

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Captions

Captions

Ever wondered what the inside of the Very Large Telescope (VLT) looks like? Wonder no more! In this Picture of the Week we invite you into the dome of the Unit Telescope 3 (Melipal) to take a closer look.

Summary

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Description
English: Ever wondered what the inside of the Very Large Telescope (VLT) looks like? Wonder no more! In this Picture of the Week we invite you into the dome of the Unit Telescope 3 (Melipal) to take a closer look.With this fisheye view of the internal structure of Melipal, the whole telescope and its dome is caught on camera. The main mirror, measuring an impressive 8.2 metres in diameter, weighs in at more than 23 tonnes. To support the mirror and other components and make sure they’re kept steady during observations, a sturdy steel frame is required.The whole movable structure of the telescope weighs about 430 tonnes, like a ​​a fully loaded jumbo jet! Yet, it can be smoothly moved by hand because it’s perfectly balanced and rests on oil-film bearings. The dome containing the telescope is a sturdy steel enclosure; it not only provides protection from the harsh Chilean Atacama Desert, but also controls the temperature and air flow to minimise turbulence inside the dome that could degrade the images.
Date 31 October 2022 (upload date)
Source
This media was produced by the European Southern Observatory (ESO), under the identifier potw2244a

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Author Zdeněk Bardon/ESO
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Licensing

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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
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