File:Telescopes Standing Sentry.jpg
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Size of this preview: 417 × 599 pixels. Other resolutions: 167 × 240 pixels | 334 × 480 pixels | 534 × 768 pixels | 712 × 1,024 pixels | 1,424 × 2,048 pixels | 4,845 × 6,965 pixels.
Original file (4,845 × 6,965 pixels, file size: 5.75 MB, MIME type: image/jpeg)
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Summary
DescriptionTelescopes Standing Sentry.jpg |
English: Three telescopes stand sentry under an unusual skyscape in this image from Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. The prominent bright ring which hangs ominously above the telescopes is an optical phenomenon known as a 22° halo, and is created by the interplay of ice crystals and light in Earth’s atmosphere. When sunlight or moonlight encounters icy high-altitude clouds such as the wispy cirrusclouds in this image, countless ice crystals refract and redirect the rays of light and cause a halo to form. The angle of refraction depends on the wavelength of light, which causes the inner edge of the halo to be slightly reddened. The central telescope in this image is the Curtis Schmidt Telescope, which is flanked by the SMARTS 0.9-meter and 1.0-meter telescopes. These three telescopes are part of a complex of around 40 telescopes at CTIO, which together provide US and worldwide astronomers with access to astronomical research in the southern hemisphere. |
Date | |
Source | https://noirlab.edu/public/images/iotw2139a/ |
Author | CTIO/NOIRLab/NSF/AURA/B. Tafreshi |
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This 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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:18, 13 October 2021 | 4,845 × 6,965 (5.75 MB) | Pandreve | Uploaded a work by CTIO/NOIRLab/NSF/AURA/B. Tafreshi from https://noirlab.edu/public/images/iotw2139a/ with UploadWizard |
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Credit/Provider | CTIO/NOIRLab/NSF/AURA/B. Tafreshi |
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Source | NSF's NOIRLab |
Short title |
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Image title |
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Usage terms |
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Date and time of data generation | 12:00, 29 September 2021 |
JPEG file comment | Three telescopes stand sentry under an unusual skyscape in this image from Cerro Tololo Inter-American Observatory (CTIO), a Program of NSF’s NOIRLab. The prominent bright ring which hangs ominously above the telescopes is an optical phenomenon known as a 22° halo, and is created by the interplay of ice crystals and light in Earth’s atmosphere. When sunlight or moonlight encounters icy high-altitude clouds such as the wispy cirrus clouds in this image, countless ice crystals refract and redirect the rays of light and cause a halo to form. The angle of refraction depends on the wavelength of light, which causes the inner edge of the halo to be slightly reddened. The central telescope in this image is the Curtis Schmidt Telescope, which is flanked by the SMARTS 0.9-meter and 1.0-meter telescopes. These three telescopes are part of a complex of around 40 telescopes at CTIO, which together provide US and worldwide astronomers with access to astronomical research in the southern hemisphere. |
Serial number of camera | 3000447 |
Lens used | 14.0-24.0 mm f/2.8 |
Software used | Adobe Photoshop 22.4 (Windows) |
Date and time of digitizing | 00:46, 18 July 2015 |
File change date and time | 02:17, 23 June 2021 |
Rating (out of 5) | 5 |
Date metadata was last modified | 02:17, 23 June 2021 |
Unique ID of original document | 521A4E5301C7FF6DF51EA62855D4BEE7 |
Keywords | NGC 7793 |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
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