File:Gemini North Fish Eye LGS (gemini-20090603-gn-ext-lgs-fisheye-001).tiff
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[edit]DescriptionGemini North Fish Eye LGS (gemini-20090603-gn-ext-lgs-fisheye-001).tiff |
English: Here is a "fish eye" image of the Gemini North observatory during a Laser Guide Star (LGS) run, taken from the catwalk around the outside of the UH 2.2 meter telescope. LGS creates an “artificial star” which is used as a reference source for adaptive optics systems on Gemini instruments. Directly behind the Gemini Observatory is the Canada-France-Hawaii Telescope; continuing counter clockwise is the NASA Infrared Telescope Facility, the double domes of the W. M. Keck Observatory, followed by the Subaru Telescope. |
Date | 3 June 2009 (upload date) |
Source | Gemini North Fish Eye LGS |
Author | International Gemini Observatory |
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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 | 22:16, 23 October 2023 | 2,880 × 2,876 (23.76 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/gemini-20090603-gn-ext-lgs-fisheye-001.tif via Commons:Spacemedia |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon EOS-1Ds Mark II |
Author | Peter Michaud |
Exposure time | 55/1 sec (55) |
F-number | f/3.5 |
ISO speed rating | 800 |
Date and time of data generation | 22:41, 3 June 2009 |
Lens focal length | 8 mm |
Width | 2,880 px |
Height | 2,876 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 25,974 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 2,876 |
Bytes per compressed strip | 24,848,640 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop Lightroom |
File change date and time | 13:00, 9 July 2009 |
Exposure Program | Manual |
Exif version | 2.21 |
APEX shutter speed | −5.78136 |
APEX aperture | 3.61471 |
APEX exposure bias | 0 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | Uncalibrated |
Focal plane X resolution | 3,526.7605633803 |
Focal plane Y resolution | 3,528.0423280423 |
Focal plane resolution unit | inches |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Scene capture type | Standard |