File:Star trail and LGS from Gemini North (geminiann06026i).tiff
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Summary[edit]
DescriptionStar trail and LGS from Gemini North (geminiann06026i).tiff |
English: Star trail image of the Gemini laser guide star as it tracks along with the Earth's rotation. This image was made by stacking multiple 50-second exposures over a period of about 15 minutes. The remains of evening twilight can be seen to the right and the lights of Hilo to the left. Thanks to the Canada-France-Hawaii telescope for access to their catwalk for this image. |
Date | 19 December 2006, 14:33:00 (upload date) |
Source | Star trail and LGS from Gemini North |
Author | International Gemini Observatory/NOIRLab/NSF/AURA |
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Licensing[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 | 23:30, 23 October 2023 | 3,326 × 3,326 (31.69 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/geminiann06026i.tif via Commons:Spacemedia |
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Metadata
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.
Image title | Star trail image of the Gemini laser guide star as it tracks along with the Earth's rotation. This image was made by stacking multiple 50-second exposures over a period of about 15 minutes. The remains of evening twilight can be seen to the right and the lights of Hilo to the left. Thanks to the Canada-France-Hawaii telescope for access to their catwalk for this image. |
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Camera manufacturer | Canon |
Camera model | Canon EOS-1Ds Mark II |
Exposure time | 45/1 sec (45) |
F-number | f/3.5 |
ISO speed rating | 800 |
Date and time of data generation | 19:10, 10 October 2006 |
Lens focal length | 8 mm |
Width | 3,326 px |
Height | 3,326 px |
Bits per component |
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Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 34,878 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 3,326 |
Bytes per compressed strip | 33,186,828 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 12:42, 21 December 2006 |
Exposure Program | Manual |
Exif version | 2.21 |
Date and time of digitizing | 12:42, 21 December 2006 |
APEX shutter speed | −5.491853 |
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 |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Scene capture type | Standard |