File:NGC 6822 (NIRCam image) - Flickr - James Webb Space Telescope.jpg
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Summary
[edit]DescriptionNGC 6822 (NIRCam image) - Flickr - James Webb Space Telescope.jpg |
Space isn’t always metal. Here is Webb’s mid-infrared view of NGC 6822, a galactic neighbor with unusually low “metallicity.” This means it doesn’t have much in the way of elements heavier than hydrogen and helium. Before the first generation of stars, everything had very low metallicity — stars had not yet created heavier elements. Studying a contemporary object with low metallicity, like this galaxy, can help us understand more about stars and dust in the early universe. More: esawebb.org/images/potm2307a/ This image: This view was captured by the the Near-InfraRed Camera (NIRCam), which shows the galaxy’s countless stars in incredible detail. Here, the dust and gas that pervade the galaxy are reduced to translucent red wisps, laying the stars bare for astronomical study. The power of Webb’s ice-cold infrared instruments and the incredible resolution of its primary mirror is necessary to examine stars hidden in dusty environments, and the results as shown here are spectacular. The brightest stars appear in pale blue and cyan colors in this image, colors which are assigned to the shortest wavelengths of light that NIRCam can detect: red and near infrared. The amount of light emitted by any star decreases at longer and longer wavelengths, towards the mid-infrared, so the stars that are more faint to NIRCam also appear more warmly coloured here. A bright blue orb to the lower left of the gas is particularly prominent: this is a globular cluster, packed with stars. This image has been cropped and downscaled from the full NIRCam resolution to match that of the MIRI image. Image description: Image of galaxy NGC 6822 captured by Webb’s Near-Infrared Camera, or NIRCam. It shows a densely packed field of stars, mixed with swirls of red gas, on a black background. The stars come in a variety of shapes, sizes and colors. Most are white, but some are yellow or red. The smaller stars appear as dots, but larger stars have distinctive snowflake-like patterns. Two particularly prominent stars are located in the bottom right corner of the image. |
Date | Taken on 24 July 2023, 16:46 |
Source | NGC 6822 (NIRCam image) |
Author | NASA's James Webb Space Telescope from Greenbelt, MD, USA |
Flickr tags InfoField | jwst , galaxy , ngc 6822 , webb |
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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/53084056761. It was reviewed on 2 August 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
2 August 2023
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current | 02:36, 2 August 2023 | ![]() | 3,154 × 1,000 (2.05 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2023-07-31 |
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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.
Source | ESA/Webb |
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Credit/Provider | ESA/Webb, NASA & CSA, M. Meixner |
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Image title |
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Date and time of data generation | 10:00, 31 July 2023 |
Software used | Adobe Photoshop 24.4 (Windows) |
File change date and time | 16:46, 24 July 2023 |
Date and time of digitizing | 10:41, 14 June 2023 |
Date metadata was last modified | 18:46, 24 July 2023 |
Unique ID of original document | xmp.did:abc6ac22-2df1-174c-9f36-81be2ffec1b5 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |