File:Parker Fagrelius working on ProtoDESI (xBD201606-00198-04 CC).tiff
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[edit]DescriptionParker Fagrelius working on ProtoDESI (xBD201606-00198-04 CC).tiff |
English: ProtoDESI is a pathfinding instrument for the Dark Energy Spectroscopic Instrument. DESI is a multi-fiber spectrograph installed on the 4-meter Mayall telescope at Kitt Peak National Observatory to explore the nature of dark energy. DESI aims to determine whether the accelerating expansion of the Universe is consistent with a cosmological constant, measure any time evolution of the Dark Energy, and search for any failures of general relativity. The 4-pinhole fiducials will enable ProtoDESI to precisely move fiber positioners to collect light from astronomical objects. |
Date | 26 November 2020, 09:57 (upload date) |
Source | Parker Fagrelius working on ProtoDESI |
Author | Paul Mueller/Lawrence Berkeley National Lab/KPNO/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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current | 08:50, 13 July 2023 | 5,100 × 3,404 (33.2 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/xBD201606-00198-04_CC.tif via Commons:Spacemedia |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D810 |
Author | Paul Mueller |
Exposure time | 1/60 sec (0.016666666666667) |
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ISO speed rating | 1,600 |
Date and time of data generation | 04:28, 15 May 2014 |
Lens focal length | 28 mm |
Width | 5,100 px |
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Bits per component |
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Number of components | 3 |
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Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 21.2 (Windows) |
File change date and time | 21:51, 19 September 2020 |
Exposure Program | Shutter priority |
Exif version | 2.3 |
Date and time of digitizing | 04:28, 15 May 2014 |
APEX shutter speed | 5.906891 |
APEX aperture | 5.655638 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 1.6 APEX (f/1.74) |
Metering mode | Pattern |
Light source | Unknown |
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Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 28 mm |
Scene capture type | Standard |
Scene control | High gain up |
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