File:CTIO Blanco 4-m silhouetted against Cerro Tololo sky (noao0131a).tiff
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[edit]DescriptionCTIO Blanco 4-m silhouetted against Cerro Tololo sky (noao0131a).tiff |
English: The CTIO 4-meter Blanco telescope, silhouetted against the Magellanic Clouds (at left) and the Milky Way, as seen from Cerro Tololo in Chile. This is not a composite image. It was taken by Roger Smith using a 2048x2048 scientific CCD which has much higher sensitivity than photographic film, revealing greater detail in exposures short enough (20 seconds) to eliminate star trails. The CCD, normally used on the telescope pictured, was temporarily mated to a Zeiss Distagon 40 mm f/4 lens by a "camera body" made in house. The only source of illumination is starlight. |
Date | 30 June 2020, 21:53:00 (upload date) |
Source | CTIO Blanco 4-m silhouetted against Cerro Tololo sky |
Author | Roger Smith/NOIRLab/NSF/AURA/ |
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[edit]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 | 17:42, 17 September 2023 | 1,080 × 1,000 (1.03 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noao0131a.tif via Commons:Spacemedia |
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Image title | converted PNM file |
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Width | 1,080 px |
Height | 1,000 px |
Bits per component | 8 |
Compression scheme | Uncompressed |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 7 |
Data arrangement | chunky format |
Software used | ImageMagick 5.5.1 10/20/02 Q16 http://www.imagemagick.org |