File:Coating chambers in the ELT Technical Facility at Paranal Observatory (ann24005g).jpg
Original file (5,877 × 3,918 pixels, file size: 6.72 MB, MIME type: image/jpeg)
Captions
Summary
editDescriptionCoating chambers in the ELT Technical Facility at Paranal Observatory (ann24005g).jpg |
English: These two coating chambers inside the Extremely Large Telescope (ELT)’s Technical Facility at ESO’s Paranal Observatory are used to give a shiny new finish to the hundreds of mirror segments that will make up the ELT’s primary mirror. They were produced by AGC Europe. The reflective coating is made up of 1.7 grams of silver, with additional layers of nickel chromium and silicon nitride to improve adhesion to the mirror blank and protect the silver from tarnishing. Overall, the coating on each segment is around 120 nanometres thick, or about one thousand times thinner than a human hair. The machine on the foreground to the left is used to check the segments prior to coating; if imperfections are detected, the segment is washed manually before the coating is applied. |
||
Date | 14 March 2024 (upload date) | ||
Source |
|
||
Author | ESO/F. Carrasco (CHEPOX) | ||
Other versions |
|
Licensing
editThis 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." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 12:50, 16 March 2024 | 5,877 × 3,918 (6.72 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/large/ann24005g.jpg via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
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.
Author | FERNANDO-CARRASCO-CRUCHAGA |
---|---|
Credit/Provider | ESO/F. Carrasco (CHEPOX) |
Source | European Southern Observatory |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 14:00, 14 March 2024 |
JPEG file comment | These two coating chambers inside the Extremely Large Telescope (ELT)’s Technical Facility at ESO’s Paranal Observatory are used to give a shiny new finish to the hundreds of mirror segments that will make up the ELT’s primary mirror. The reflective coating is made up of 1.7 grams of silver, with additional layers of nickel chromium and silicon nitride to improve adhesion to the mirror blank and protect the silver from tarnishing. Overall, the coating on each segment is around 120 nanometres thick, or about one thousand times thinner than a human hair. The machine on the foreground to the left is used to check the segments prior to coating; if imperfections are detected, the segment is washed manually before the coating is applied. |
Software used | Adobe Photoshop 25.4 (Macintosh) |
File change date and time | 16:19, 12 March 2024 |
Serial number of camera | 72A51384 |
Lens used | XF10-24mmF4 R OIS |
Rating (out of 5) | 0 |
Date and time of digitizing | 13:18, 11 March 2024 |
Date metadata was last modified | 17:19, 12 March 2024 |
Unique ID of original document | 30FA617D24C96121882E5E84A53E36E5 |
Keywords | Extremely Large Telescope |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |