File:Our best map of the Milky Way so far (the-milky-way-galaxy).jpg
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DescriptionOur best map of the Milky Way so far (the-milky-way-galaxy).jpg |
English: Our best map of the Milky Way so far. |
Date | 19 April 2022, 06:50 (upload date) |
Source | Our best map of the Milky Way so far. |
Author | NASA/JPL-Caltech/R. Hurt (SSC/Caltech). |
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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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current | 21:12, 11 July 2023 | 5,600 × 5,600 (4.85 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/large/the-milky-way-galaxy.jpg via Commons:Spacemedia |
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Author | Spitzer Space Telescope |
Credit/Provider | NASA/JPL-Caltech/R. Hurt (SSC/Caltech). |
Source | NSF's NOIRLab |
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Date and time of data generation | 06:50, 19 April 2022 |
JPEG file comment | Like early explorers mapping the continents of our globe, astronomers are busy charting the spiral structure of our galaxy, the Milky Way. Using infrared images from NASA's Spitzer Space Telescope, scientists have discovered that the Milky Way's elegant spiral structure is dominated by just two arms wrapping off the ends of a central bar of stars. Previously, our galaxy was thought to possess four major arms. This annotated artist's concept illustrates the new view of the Milky Way, along with other findings presented at the 212th American Astronomical Society meeting in St. Louis, Mo. The galaxy's two major arms (Scutum-Centaurus and Perseus) can be seen attached to the ends of a thick central bar, while the two now-demoted minor arms (Norma and Sagittarius) are less distinct and located between the major arms. The major arms consist of the highest densities of both young and old stars; the minor arms are primarily filled with gas and pockets of star-forming activity. The artist's concept also includes a new spiral arm, called the "Far-3 kiloparsec arm," discovered via a radio-telescope survey of gas in the Milky Way. This arm is shorter than the two major arms and lies along the bar of the galaxy. Our sun lies near a small, partial arm called the Orion Arm, or Orion Spur, located between the Sagittarius and Perseus arms. |
Software used | Adobe Photoshop CS3 Macintosh |
File change date and time | 11:42, 13 November 2008 |
Contact information |
950 North Cherry Ave. Tucson, AZ, 85719 USA |
Keywords | Milky Way |
IIM version | 4 |