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What is it? The Ring Nebula (also called M57 or NGC 6720)
Where is it? Around 2,000 light-years away, in the constellation Lyra
Why is it so special?Two stunning new images from the James Webb Space Telescope (JWST) show one of the closest and most famous planetary nebulas in exquisite detail. Although a preview was published a few weeks ago, these new versions — one taken using JWST's Mid-Infrared Instrument (MIRI), and the other snapped with the telescope's Near Infrared Camera (NIRCam) — reveal incredible detail in both the inner and outer regions of the nebulas's ring.
The Ring Nebula contains the cosmic leftovers of a star that reached the end of its life and began to shed its outer layers of gas. It appears as a squashed doughnut shape, but JWST's line of sight allows it to see directly down into a brightly colored barrel of material stretching into space. The main ring consists of gas expelled by the dying star at the nebula's center; just beyond it, as best seen in the MIRI image, are about 10 concentric arcs that are thought to be the result of the star's interaction with a much smaller companion star.
In the NIRCam image below, you can see intricate details of the inner ring's filament structure. Both images offer vastly more detail than a famous image of the Ring Nebula taken by the Hubble Space Telescope in 2013.
Can you see it in the night sky? Looking like a smoke ring in deep space, M57 is one of the most popular targets for amateur astronomers this time of year, though you will need a 4-inch (10 centimeters) or larger-aperture backyard telescope to spot the nebula. Very dark skies also help because, as with all planetary nebulas, their diffuse light is easily blocked by light pollution.
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The Ring Nebula is located in the Summer Triangle, one of the most famous asterisms, or star patterns, in the Northern Hemisphere summer (Southern Hemisphere winter) between June and September.
To find the Ring Nebula, first locate the brightest star in the Summer Triangle, Vega; then look below for a distinctive parallelogram of dimmer stars. You'll find the ring-shaped object between the stars Sulafat and Sheliak.
Jamie Carter is a Cardiff, U.K.-based freelance science journalist and a regular contributor to Live Science. He is the author of A Stargazing Program For Beginners and co-author of The Eclipse Effect, and leads international stargazing and eclipse-chasing tours. His work appears regularly in Space.com, Forbes, New Scientist, BBC Sky at Night, Sky & Telescope, and other major science and astronomy publications. He is also the editor of WhenIsTheNextEclipse.com.
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