File:ESO’s VLTI images of stars at the center of the Milky Way (noirlab2130c).jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 799 × 327 pixels. Other resolutions: 320 × 131 pixels | 640 × 262 pixels | 1,024 × 419 pixels | 1,280 × 524 pixels | 4,500 × 1,842 pixels.
Original file (4,500 × 1,842 pixels, file size: 612 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Summary[edit]
DescriptionESO’s VLTI images of stars at the center of the Milky Way (noirlab2130c).jpg |
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 |
Other versions |
|
Licensing[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.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 08:47, 23 August 2023 | 4,500 × 1,842 (612 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/noirlab2130c.jpg via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Credit/Provider | ESO/GRAVITY collaboration |
---|---|
Source | NSF's NOIRLab |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 08:00, 14 December 2021 |
JPEG file comment | 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 Sgr 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 kilometres, just 90 times the distance between the Sun and Earth. Another star, named S300, was detected for the first time in the new VLTI observations. To obtain the new images, the astronomers used a machine-learning technique, called Information Field Theory. They made a model of how the real sources may look, simulated how GRAVITY would see them, and compared this simulation with GRAVITY observations. This allowed them to find and track stars around Sagittarius A* with unparalleled depth and accuracy. |
Software used | Adobe Photoshop 22.5 (Windows) |
File change date and time | 14:19, 28 September 2021 |
Date and time of digitizing | 13:13, 28 September 2021 |
Date metadata was last modified | 16:19, 28 September 2021 |
Unique ID of original document | xmp.did:d4875d07-7fe4-7041-9efc-23350259ad3e |
Keywords | Milky Way |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
IIM version | 4 |