File:Grinding the ELT’s M3 mirror (20230831 162758).tiff
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editDescriptionGrinding the ELT’s M3 mirror (20230831 162758).tiff |
English: The Extremely Large Telescope’s (<a style="text-decoration: none;" href="https://elt.eso.org/">ELT's</a>) tertiary mirror, M3, is four metres in diameter and weighs in at a whopping three tonnes. Here, the M3 mirror is in the grinding phase at Safran Reosc in France, which is designed to improve the surface quality to an accuracy of a few micrometres. Following this stage, the mirror will be polished to an accuracy of a few nanometres. |
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Date | 27 November 2023, 14:21:00 (upload date) | ||
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Author | Safran | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:16, 28 November 2023 | ![]() | 4,470 × 3,353 (85.8 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/original/20230831_162758.tif via Commons:Spacemedia |
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ISO speed rating | 100 |
Date and time of data generation | 16:27, 31 August 2023 |
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File change date and time | 11:43, 24 November 2023 |
Exposure Program | Normal program |
Exif version | 2.31 |
Date and time of digitizing | 16:27, 31 August 2023 |
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