File:10 receivers inside an ALMA cryostat (ann23013a).tiff
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Summary[edit]
Description10 receivers inside an ALMA cryostat (ann23013a).tiff |
English: This image shows the cryostat of an Atacama Large Millimeter/submillimeter Array (ALMA) antenna populated with 10 receivers for the first time. The receivers pick up the signals from outer space at specific frequency bands, covering a window from 950 to 35 GHz, and are stored in a cryostat that cools them down to temperatures as low as -269°C. The installation of the "Band 2" receivers, initiated in 2023, means ALMA antennas can observe within the final frequency range (67 to 116 GHs) for which the array was designed. |
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Date | 14 August 2023 (upload date) | ||
Source |
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Author | S. Otarola, ALMA(ESO/NAOJ/NRAO) | ||
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Licensing[edit]
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." 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.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 07:17, 15 August 2023 | 5,984 × 3,984 (51.26 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.eso.org/public/archives/images/original/ann23013a.tif via Commons:Spacemedia |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7100 |
Author | SERGIO OTAROLA |
Exposure time | 1/50 sec (0.02) |
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ISO speed rating | 320 |
Date and time of data generation | 17:37, 18 February 2023 |
Lens focal length | 24 mm |
Width | 5,984 px |
Height | 3,984 px |
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Pixel composition | RGB |
Orientation | Normal |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
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Software used | Adobe Photoshop 24.5 (Windows) |
File change date and time | 12:04, 16 June 2023 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 17:37, 18 February 2023 |
APEX shutter speed | 5.643856 |
APEX aperture | 4.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 1 APEX (f/1.41) |
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Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 36 mm |
Scene capture type | Standard |
Scene control | None |
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