File:Salacia_and_Actaea_Keck-NIRC2.jpg
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Salacia_and_Actaea_Keck-NIRC2.jpg (492 × 492 pixels, file size: 98 KB, MIME type: image/jpeg)
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Summary
DescriptionSalacia and Actaea Keck-NIRC2.jpg |
English: Adaptive-optics image of the trans-Neptunian object (120347) Salacia (center) and its moon Actaea (left), taken by the Keck II telescope's NIRC2 near-infrared camera on 3 August 2010 09:47:17.78 UTC. This is a single 100-second exposure from the frame N2.20100803.35237_drp. These observations were part of the program "Mutual Orbits of Transneptunian Multibody Systems", led by principal investigator William Grundy. |
Date | |
Source |
Cropped from image N2.20100803.35237_drp at the Keck Observatory Archive |
Author | William Grundy/Keck Observatory Archive/W. M. Keck Observatory (WMKO)/NASA Exoplanet Science Institute (NExScI; JPL-Caltech) |
Permission (Reusing this file) |
"Unless otherwise noted, images and video on Infrared Processing and Analysis Center (IPAC) public web sites (public sites ending with a ipac.caltech.edu address) may be used for any purpose without prior permission" https://koa.ipac.caltech.edu/image_policy.html |
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Licensing
Public domainPublic domainfalsefalse |
This file is in the public domain because The W. M. Keck Observatory on behalf of IPAC releases telescope images as PD: "may be used for any purpose without prior permission"[1]
This template must not be used to dedicate an uploader's own work to the public domain; CC0 should be used instead. This work must carry justifications for free usability in both the United States and its country of origin. |
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 02:08, 3 January 2023 | 492 × 492 (98 KB) | Nrco0e | Better single-frame image from N2.20100803.35237_drp.fits. Original pixel size is increased by 4x to avoid upscale blurring. | |
01:29, 3 January 2023 | 80 × 80 (3 KB) | Kwamikagami | crop further | ||
01:26, 3 January 2023 | 176 × 176 (8 KB) | Kwamikagami | upload img without artefacts | ||
22:36, 2 January 2023 | 140 × 143 (9 KB) | Kwamikagami | Uploading a non-free file using File Upload Wizard |
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Width | 1,024 px |
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Height | 1,024 px |
Bits per component | 16 |
Compression scheme | Uncompressed |
Pixel composition | Black and white (Black is 0) |
Number of components | 1 |
Number of rows per strip | 512 |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Data arrangement | chunky format |
Software used | paint.net 4.3.12 |
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