File:Wispy dark clouds (potw2237a).tiff
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[edit]DescriptionWispy dark clouds (potw2237a).tiff |
English: The dark clouds in this image, taken from ESO’s Paranal Observatory in Chile, almost resemble something supernatural, like the wispy trails of ghosts in the sky. But there is no need to call the ghostbusters! These clouds, known as Barnard 92 (right) and Barnard 93 (left) are dark nebulae: they look pitch black because the dense gas and dust they contain block out the background light, creating these hazy ghostlike features.These nebulae are stellar nurseries, where new stars are born out of the collapsing dense gas and dust. This whole region of space imaged here is actually part of a much larger stellar complex, called the Small Sagittarius Star Cloud (or Messier 24, catalogued by Charles Messier in 1764). This area is so rich in stars that it is clearly visible to the naked eye during dark nights, in the constellation of Sagittarius.This image was taken with an enormous 268 million pixel camera called OmegaCAM on the VLT Survey Telescope. OmegaCAM is designed for capturing wide fields like this image, where you could impressively fit four full Moons. This image is part of the VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+), which has mapped diffuse nebulae as well as both young and evolved stars in our galaxy. |
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Date | 12 September 2022 (upload date) | ||
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Author | ESO/VPHAS+ team. Acknowledgement: Cambridge Astronomical Survey Unit | ||
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This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts 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 | 11:11, 1 July 2023 | ![]() | 16,823 × 16,823 (841.67 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://cdn.eso.org/images/original/potw2237a.tif via Commons:Spacemedia |
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Width | 16,823 px |
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Height | 16,823 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 5 |
Horizontal resolution | 10 dpc |
Vertical resolution | 10 dpc |
Data arrangement | chunky format |
Software used | Adobe Photoshop 23.5 (Windows) |
File change date and time | 13:36, 6 September 2022 |
Color space | sRGB |