![Wolf-Rayet star “WR 140”: a tree-ring-like structure that forms every 8 years[الصورة الفضائية اليوم]|](https://sorae.info/wp-content/uploads/2022/10/James-Webb-JWST-Wolf-Rayet-140-ESA-NASA-STScI-WR140a-1-e1666064029300.jpg "Wolf-Rayet star “WR 140”: a tree-ring-like structure that forms every 8 years[الصورة الفضائية اليوم]|")
[SAPOD]”Satellite image” today. We present to you the distinctive images provided by the images in the past, the attractive images released by space agencies from different countries, and the images submitted by fans and experts of space astronomy. (There is a link to the original article at the end of the article)
(Source: sorae portal to the universe website)
This is located about 5,300 light-years away in the direction of the Cygnus constellation.Wolf Wright Star “WR 140”This image is a false-color image created based on images acquired with the James Webb Space Telescope's mid-infrared (MIRI) instrument and released on October 12, 2022.
source
- Image credit: NASA, ESA, CSA, STScI, JPL-Caltech
- sorae – 17 rings drawn by a pair of giant stars. Photographed with the James Webb Space Telescope
- ESA/Web -Webb found a Star Duo “imprint” in space
A Wolf-Rayet star is an evolved form of a massive O-type star, which is nearing the end of its short life of less than 10 million years. WR 140 is thought to be a binary star system in which the star that evolved into a Wolf-Rayet star orbits another O-type star every 7.93 years.
The 17 concentric rings surrounding WR 140, shown in the first image, formed when the stellar winds of an O-type star and a Wolf-Rayet star collided, compressing gas and producing dust. However, the WR 140 Wolf-Rayet star orbits in a long elliptical orbit, so dust is only produced when the two stars get close together. Therefore, dust rings form approximately every eight years, just like tree rings.
In previous observations using ground-based telescopes, only two rings could be seen, indicating the high performance of the Webb space telescope that captured this image.
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