![File:Black hole - Messier 87.jpg](https://web.archive.org/web/20190615224331im_/https://upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Black_hole_-_Messier_87.jpg/800px-Black_hole_-_Messier_87.jpg)
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Original file (7,416 × 4,320 pixels, file size: 2.39 MB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 19:58, 17 April 2019 | ![]() | 7,416 × 4,320 (2.39 MB) | Colin | Taken from https://www.eso.org/public/archives/images/original/eso1907a.tif 16-bit original. Converted to 8-bit with dithering using Photoshop 2019. Saved as JPG with maximum level 12 quality. This file is smaller than previous one because the previous one had noise or extreme dithering which does not compress well. |
18:19, 13 April 2019 | ![]() | 7,416 × 4,320 (10.49 MB) | Colin | Save from tiff at maximum quality 12 from Photoshop 2019 (previous had approx 10 which produced some block artefacts visible at high magnification). Source TIF image has some random noise which is likely inherent in the production and requires minimal compression to reproduce faithfully in JPG. First version uploaded was likely smoothed. | |
14:06, 12 April 2019 | ![]() | 7,416 × 4,320 (2.28 MB) | Yann | original from source: https://cdn.eso.org/images/large/eso1907a.jpg | |
10:31, 11 April 2019 | ![]() | 4,000 × 2,330 (844 KB) | Multichill | Commons:Overwriting existing files: Please upload under a different filename | |
07:48, 11 April 2019 | ![]() | 2,392 × 2,326 (182 KB) | Nixinova | Crop to 1:1 | |
13:43, 10 April 2019 | ![]() | 4,000 × 2,330 (844 KB) | Theklan | User created page with UploadWizard |
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