NASA’s James Webb Space Telescope has observed the well-known Ring Nebula in unprecedented detail. Formed by a star throwing off its outer layers as it runs out of fuel, the Ring Nebula is an archetypal planetary nebula. Also known as M57 and NGC 6720, it is relatively close to Earth at roughly 2,500 light-years away. This new image from Webb’s NIRCam (Near-Infrared Camera) provides unprecedented spatial resolution and spectral sensitivity. For example, the intricate details of the filament structure of the inner ring are particularly visible in this dataset. There are some 20,000 dense globules in the nebula, which are rich in molecular hydrogen. In contrast, the inner region shows very hot gas. The main shell contains a thin ring of enhanced emission from carbon-based molecules known as polycyclic aromatic hydrocarbons (PAHs). Roughly ten concentric arcs are located just beyond the outer edge of the main ring. The arcs are thought to originate from the interaction of the central star with a low-mass companion orbiting at a distance comparable to that between the Earth and Pluto. In this way, nebulae like the Ring Nebula reveal a kind of astronomical archaeology, as astronomers study the nebula to learn about the star that created it.
Image Credit:ESA/Webb, NASA, CSA, M. Barlow (UCL), N. Cox (ACRI-ST), R. Wesson (Cardiff University)
About the Object
- R.A. Position
- 18:53:35
- Dec. Position
- +33:01:45
- Constellation
- Lyra
- Distance
- 2,300 light-years
- Dimensions
- 2.14 x 2.17 arcminutes
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NASA's James Webb Space Telescope's mid-infrared image shows four coiled shells of dust around a pair of Wolf-Rayet stars known as Apep for the first time.
Image Credit: Image: NASA, ESA, CSA, STScI; Science: Yinuo Han (Caltech), Ryan White (Macquarie University); Image Processing: Alyssa Pagan (STScI)
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What looks like craggy mountains in moonlight is actually the edge of NGC 3324, a young star-forming region in the Carina Nebula, captured in infrared by Webb's NIRCam. Nicknamed the "Cosmic Cliffs," the region is the edge of a gigantic cavity carved by intense ultraviolet radiation and stellar winds from hot, massive young stars, revealing hundreds of previously hidden stars and background galaxies for the first time.
Image Credit: NASA, ESA, CSA, STScI
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To celebrate NASA’s James Webb Space Telescope’s third year of highly productive science, astronomers used the telescope to scratch beyond the surface of the Cat’s Paw Nebula (NGC 6334), a massive, local star-forming region. This area is of great interest to scientists, having been subject to previous study by NASA’s Hubble and retired Spitzer space telescopes, as they seek to understand the multiple steps required for a turbulent molecular cloud to transition to stars. With its near-infrared capabilities and sharp resolution, the telescope “clawed” back a portion of a singular “toe bean,” revealing a subset of mini toe bean-reminiscent structures composed of gas, dust, and young stars. Webb’s view reveals a chaotic scene still in development: Massive young stars are carving away at nearby gas and dust, while their bright starlight is producing a bright nebulous glow represented in blue. This is only a chapter in the region’s larger story. The disruptive young stars, with their relatively short lifespans and luminosity, will eventually quench the local star formation process. The Cat’s Paw Nebula is located approximately 4,000 light-years away in the constellation Scorpius. To dive deeper into Webb’s image of the Cat’s Paw, embark on a narrated tour, get closer to the image, or read the press release. Additionally, learn more about Webb’s three years of science observations.
Image Credit: NASA, ESA, CSA, STScI