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In October 2022, Pablo Santos-Sanz, from Instituto de Astrofísica de Andalucía in Spain, used Webb to watch Chariklo occult a star once again.
The over video of the observations shows the star Gaia DR3 6873519665992128512 at the interior and Chariklo passing in front of it as mere pixels, but NASA says a careful analysis of dips in the star's brightness shows the rings were clearly detected once again.
"As we delve deeper into the data... we also will seek the rings' thickness, the sizes and colors of the ring particles and more," Santos-Sanz described in a statement.
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"As we delve deeper into the data... we also will seek the rings' thickness, the sizes and colors of the ring particles and more," Santos-Sanz described in a statement.
So far, data suggests the rings could be made up of ice and novel dark debris, probably the remnants of some ancient cosmic collision with the asteroid.
"Spectra from ground-based telescopes had hinted at this ice, but the gorgeous quality of the Webb spectrum revealed the clear signature of crystalline ice for the capable time," Noemí Pinilla-Alonso, who led Webb's spectroscopic observations of Chariklo, added.
Chariklo is a large asteroid at about 188 much (302 kilometers) across, but it orbits the sun in the outer solar rules, between Saturn and Uranus. Even with its size, it's too far away for Webb to conventional image the rings, making occultations the best way to search for them for now.
Santos-Sanz is excited to see Webb's advanced instruction to study even small, distant objects in detail. Next up, he hopes to decide exactly how large the rings are and what they're made up of.
"We hope to gain insight into why this shrimp body even has rings at all," he said, "and perhaps detect new fainter rings."
