TechA mysterious entity is orbiting the Sun arresting the attention of researchers

A mysterious entity is orbiting the Sun arresting the attention of researchers

Illustration of the rings from the surface of the icy centaur Chiron.
Illustration of the rings from the surface of the icy centaur Chiron.
Images source: © European Southern Observatory
3:04 PM EST, December 5, 2023

Within our Solar System, an oddity exists. Caught in the vicinity between Saturn and Uranus, it at times swings closer to the former and at other times the latter. This comet's peculiarity lies in its adaptable icy dust disc, which occasionally bears a semblance to rings.

This entity, christened Chiron, is a so-called centaur- a relatively small celestial body with traits strikingly similar to a comet. It has a diameter of merely 136 miles. It is yet to be visited by any spacecraft, but past phenomena have given us inklings about its probable appearance.

What surrounds Chiron – the bizarre object in our Solar System?

During 2011, the starlight of one star was blocked by Chiron. Scientists noticed that this star's light perceived from Earth dimmed twice- once before and once after the obscuration. This led to the proposition that the centaur possibly possesses a binary dust system. However, more recent scrutiny by the Planetary Science Institute in Arizona has forced a reconsideration of the centaur's nature. In 2023, they shared the firm results of these observations.

Analysis of Chiron by the PSI divulged that the star's obscured light dwindled as many as five times. The situation would be depicted differently if the centaur possessed only two stable rings. The asymmetry also raised questions. Consequently, Amanda Sickafoose from PSI commented, "The location and amount of material detected around Chiron deviate so substantially from previous observations that they imply that a stable ring system doesn't exist. Instead, the material is shrouding the centaur and seems to be in an evolving stage."

In December 2022, more observations were made, this time at the Kottamia Astronomical Observatory in Egypt. The material around Chiron transformed again, with three symmetrical structures discerned around the centaur. These structures appeared to collectively constitute a broad disc spanning around 360 miles in diameter. The genesis and composition of this material remain undetermined, though it is believed that the source is likely Chiron itself.

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