File:Cassiopeia A (MIRI Image).jpg

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DescriptionCassiopeia A (MIRI Image).jpg	English: (original description by webbtelescope.org NASA/STScI) Cassiopeia A (Cas A) is a supernova remnant located about 11,000 light-years from Earth in the constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid-Infrared Instrument (MIRI) to reveal Cas A in a new light. On the remnant’s exterior, particularly at the top and left, lie curtains of material appearing orange and red due to emission from warm dust. This marks where ejected material from the exploded star is ramming into surrounding circumstellar material. Interior to this outer shell lie mottled filaments of bright pink studded with clumps and knots. This represents material from the star itself, and likely shines due to a mix of various heavy elements and dust emission. The stellar material can also be seen as fainter wisps near the cavity’s interior. A loop represented in green extends across the right side of the central cavity. Its shape and complexity are unexpected and challenging for scientists to understand. This image combines various filters with the color red assigned to 25.5 microns (F2550W), orange-red to 21 microns (F2100W), orange to 18 microns (F1800W), yellow to 12.8 microns (F1280W), green to 11.3 microns (F1130W), cyan to 10 microns (F1000W), light blue to 7.7 microns (F770W), and blue to 5.6 microns (F560W). The data comes from general observer program 1947. MIRI was contributed by NASA and ESA, with the instrument designed and built by a consortium of nationally funded European Institutes (the MIRI European Consortium) and NASA’s Jet Propulsion Laboratory, in partnership with the University of Arizona.
Date	25 March 2023, 16:08:16
Source	https://webbtelescope.org/contents/media/images/2023/121/01GWQBBY77MHGFV3M3N63KDCEJ
Author	IMAGE: NASA, ESA, CSA, Danny Milisavljevic (Purdue University), Tea Temim (Princeton University), Ilse De Looze (UGent) IMAGE PROCESSING: Joseph DePasquale (STScI)
Other versions	Cassiopeia A (MIRI Compass Image) (2023-121-01GWQC9BQ5EXWS38V1FZ2XK0XM).png Cassiopeia A (MIRI Compass Image) (2023-121-01GWQC9BQ5EXWS38V1FZ2XK0XM).tiff Cassiopeia A (MIRI Image) (2023-121-01GWQBBY77MHGFV3M3N63KDCEJ).png Cassiopeia A (MIRI Image) (2023-121-01GWQBBY77MHGFV3M3N63KDCEJ).tiff

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This file is in the public domain because it was created by NASA, ESA and CSA. NASA Webb material is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA/CSA is credited as the source of the material. This license does not apply if source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-03127. Copyright statement at webbtelescope.org. For material created by the European Space Agency on the esawebb.org site, use the {{ESA-Webb}} tag.

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Author	Space Telescope Science Institute Office of Public Outreach
Image title	The explosion of a star is a dramatic event, but the remains that the star leaves behind can be even more dramatic. A new mid-infrared image from NASA’s James Webb Space Telescope provides one stunning example. It shows the supernova remnant Cassiopeia A (Cas A), created by a stellar explosion 340 years ago. The image displays vivid colors and intricate structures begging to be examined more closely. Cas A is the youngest known remnant from anexploding, massive star in our galaxy, offering astronomers an opportunity to perform stellar forensics to understand the star’s death.
Short title	Webb Reveals Never-Before-Seen Details in Cassiopeia A
Credit/Provider	NASA, ESA, CSA, D. Milisavljevic (Purdue), T. Temim (Princeton), I. De Looze (Ghent University), J. DePasquale (STScI)
Headline	Glowing dust and elements display complex structures that are challenging for scientists to explain.
Source	STScI
Usage terms	http://stsci.edu/copyright/
Date and time of data generation	7 April 2023
JPEG file comment	The explosion of a star is a dramatic event, but the remains that the star leaves behind can be even more dramatic. A new mid-infrared image from NASA’s James Webb Space Telescope provides one stunning example. It shows the supernova remnant Cassiopeia A (Cas A), created by a stellar explosion 340 years ago. The image displays vivid colors and intricate structures begging to be examined more closely. Cas A is the youngest known remnant from an exploding, massive star in our galaxy, offering astronomers an opportunity to perform stellar forensics to understand the star’s death.
Color space	Uncalibrated
Contact information	outreach@stsci.edu http://stsci.edu 3700 San Martin Drive Baltimore, MD, 21218 USA 410-338-4444
Keywords	Cassiopeia A
Date and time of digitizing	16:08, 25 March 2023
Software used	Adobe Photoshop 24.1 (Macintosh)
Date metadata was last modified	07:50, 29 March 2023
File change date and time	06:54, 29 March 2023
Unique ID of original document	xmp.did:d8b4e69a-e41c-4002-b6a9-395e8b82898f

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