File:Iotw2231a - A Blanket of Light.jpg
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editDescriptionIotw2231a - A Blanket of Light.jpg |
English: The Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory, a Program of NSF’s NOIRLab, in Chile is shown here juxtaposed against the bright Milky Way in the background. The green light above the clouds in this image is airglow, an atmospheric phenomenon caused when trace particles and gasses in the atmosphere become electrically charged or ionized. Their atoms release their own light when they recombine at night and create a faint glow. The glow is so faint that it’s rare to see airglow with the naked eye — it’s easier to capture it in long-exposure photos like thisImage of the Week. Airglow is one reason why the night sky is never truly dark even in places far from light pollution. However, its presence alone generally doesn’t cause major problems when astronomers observe the sky at night. |
Date | |
Source | https://noirlab.edu/public/images/iotw2231a/ |
Author | CTIO/NOIRLab/NSF/AURA/B. Tafreshi |
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editThis media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week 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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current | 19:37, 22 June 2023 | 4,838 × 7,018 (9.09 MB) | C messier (talk | contribs) | full size | |
19:57, 16 December 2022 | 1,280 × 1,857 (585 KB) | Pandreve (talk | contribs) | Uploaded a work by CTIO/NOIRLab/NSF/AURA/B. Tafreshi from https://noirlab.edu/public/images/iotw2231a/ with UploadWizard |
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Credit/Provider | CTIO/NOIRLab/NSF/AURA/B. Tafreshi |
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Source | NSF's NOIRLab |
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Date and time of data generation | 12:00, 3 August 2022 |
JPEG file comment | The Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory, a Program of NSF’s NOIRLab, in Chile is shown here juxtaposed against the bright Milky Way in the background. The green light above the clouds in this image is airglow, an atmospheric phenomenon caused when trace particles and gasses in the atmosphere become electrically charged or ionized. Their atoms release their own light when they recombine at night and create a faint glow. The glow is so faint that it’s rare to see airglow with the naked eye — it’s easier to capture it in long-exposure photos like this Image of the Week. Airglow is one reason why the night sky is never truly dark even in places far from light pollution. However, its presence alone generally doesn’t cause major problems when astronomers observe the sky at night. |
Software used | Adobe Photoshop 22.0 (Windows) |
File change date and time | 08:38, 24 September 2021 |
Serial number of camera | 3000447 |
Lens used | 14.0-24.0 mm f/2.8 |
Date and time of digitizing | 09:50, 18 July 2015 |
Rating (out of 5) | 5 |
Date metadata was last modified | 01:38, 24 September 2021 |
Unique ID of original document | 5D4D58D6275A8AA562C3014D9D03D18E |
Keywords | Víctor M. Blanco 4-meter Telescope |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |