File:ESO’s VLTI images of stars at the center of the Milky Way (noirlab2130c).tiff
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[edit]DescriptionESO’s VLTI images of stars at the center of the Milky Way (noirlab2130c).tiff |
English: These annotated images, obtained with the GRAVITY instrument on ESO’s Very Large Telescope Interferometer (VLTI) between March and July 2021, show stars orbiting very close to Sagittarius A*, the supermassive black hole at the heart of the Milky Way. One of these stars, named S29, was observed as it was making its closest approach to the black hole at 13 billion kilometers, just 90 times the distance between the Sun and Earth. Another star, named S300, was detected for the first time in new VLTI observations reported by ESO.Using Gemini North of the international Gemini Observatory, a Program of NSF’s NOIRLab and ESO’s VLT, astronomers have measured more precisely than ever before the position and velocity of these stars S29 and S55 (as well as stars S2 and S38), and found them to be moving in a way that shows that the mass in the center of the Milky Way is almost entirely due to the Sagittarius A* black hole, leaving very little room for anything else. |
Date | 14 December 2021 (upload date) |
Source | ESO’s VLTI images of stars at the center of the Milky Way |
Author | ESO/GRAVITY collaboration |
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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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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:47, 23 August 2023 | 4,500 × 1,842 (5.2 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noirlab2130c.tif via Commons:Spacemedia |
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Width | 4,500 px |
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Height | 1,842 px |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 19 |
Horizontal resolution | 10 dpc |
Vertical resolution | 10 dpc |
Data arrangement | chunky format |
Software used | Adobe Photoshop 22.5 (Windows) |
File change date and time | 14:19, 28 September 2021 |
Color space | sRGB |