File:A Colorful Night (iotw2025a).jpg
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DescriptionA Colorful Night (iotw2025a).jpg |
English: These whirling lines in the sky are the trails of stars after an hour-long exposure above Kitt Peak National Observatory (KPNO), a Program of NSF’s NOIRLab. The trails are shortest around the North Star, Polaris, a star that happens to coincide almost directly with the celestial north pole. The different colors in the trails reflect the different temperatures of the stars, with blue being the hottest stars and yellow/red the coolest. The telescope visible above the horizon is the Nicholas U. Mayall 4-meter Telescope, and the red glow on the mountain is caused by red lights used to ensure the eyes of visitors and staff remain dark adapted at night. The yellow glow on the horizon comes from Tucson, AZ, about 89 kilometers (55 miles) to the northeast. Over the past decade, light pollution like this has increased by 2% a year from many medium-sized and larger cities. To help monitor light pollution in your city, you can participate in the citizen science campaign, Globe at Night. |
Date | 17 June 2020 (upload date) |
Source | A Colorful Night |
Author | KPNO/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 | 20:28, 17 September 2023 | 7,200 × 4,800 (17.02 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/iotw2025a.jpg via Commons:Spacemedia |
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Credit/Provider | KPNO/NOIRLab/NSF/AURA/B. Tafreshi |
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Image title |
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Date and time of data generation | 06:00, 17 June 2020 |
JPEG file comment | These whirling lines in the sky are the trails of stars after an hour-long exposure above Kitt Peak National Observatory (KPNO), a Program of NSF’s NOIRLab. The trails are shortest around the North Star, Polaris, a star that happens to coincide almost directly with the celestial north pole. The different colors in the trails reflect the different temperatures of the stars, with blue being the hottest stars and yellow/red the coolest. The telescope visible above the horizon is the Nicholas U. Mayall 4-meter Telescope, and the red glow on the mountain is caused by red lights used to ensure the eyes of visitors and staff remain dark adapted at night. The yellow glow on the horizon comes from Tucson, AZ, about 89 kilometers (55 miles) to the northeast. Over the past decade, light pollution like this has increased by 2% a year from many medium-sized and larger cities. To help monitor light pollution in your city, you can participate in the citizen science campaign, Globe at Night. |
Serial number of camera | 2431404093 |
Lens used | EF24mm f/1.4L II USM |
File change date and time | 04:29, 17 June 2020 |
Date and time of digitizing | 04:14, 12 November 2012 |
Software used | Adobe Photoshop 21.1 (Windows) |
Date metadata was last modified | 04:29, 17 June 2020 |
Unique ID of original document | E1980BF925CD43DD709B3DBE1A4E707D |
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