Which is the most beautiful planet in space? Anyone can tell the name of Saturn with their eyes closed. Because Saturn has huge rings or rings. Because of this ring, Saturn is called the ‘Lord of the Rings’. However, astrophysicists know, not only Saturn; Jupiter, Uranus and Neptune also have rings. Although they are not as clear or beautiful as Saturn. But a recent discovery has deprived scientists of sleep. Not a planet or satellite, but a strange small rocky object in space is also forming rings! Scientists saw that ring being born before their eyes for the first time.
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This new hero of space is called ‘2060 Chiron’. In short, it is just called Chiron. Chiron’s identity is quite strange. It is not quite an asteroid, nor is it quite a comet. This class of cosmic objects is named after the strange creature of Greek mythology, the centaur. The centaur is half human and half horse. Chiron orbits the sun in an orbit between Saturn and Uranus in our solar system. Its diameter is only 200 kilometers. Made of rock, ice, and carbon compounds, Chiron was first discovered in 1977. But back then, no one even thought that this tiny piece of rock could have rings around it! Chiron’s identity is quite strange. It is not quite an asteroid, nor quite a comet. This class of cosmic objects is named after the centaur, a strange creature in Greek mythology.
In 2023, scientists at the Pico dos Dias Observatory in Brazil were observing Chiron very closely. They were mainly working on the stellar occultation method. When an object passes in front of a distant star, the star’s light is temporarily blocked in this method. By observing the changes in that light, the size and characteristics of the object can be understood. Scientists were surprised while analyzing the observation data. Because four separate rings made of dust and ice particles are spinning outside the main body of Chiron! Not only that, but the location of these rings is also quite surprising. These rings are located 273 km, 325 km, 438 km and 1,400 km away from the center of Chiron, respectively. The fourth ring, which is 1,400 km away, has scientists wondering. Because the gravitational force of such a small object is not supposed to hold such a distant ring.
The rings we have seen so far were formed millions of years ago and are now in a stable state. But Chiron’s rings are still being formed! Cosmic dust, ice and rock fragments are trying to form a shape together. That is, scientists are seeing live for the first time how rings are born around a planet or satellite. But where did so much dust come from around a small rock of 200 km? Scientists believe that at some point in the past, Chiron had a major collision with another celestial body. As a result of that collision, a lot of rocks and ice were thrown out into space. That debris is now trapped by Chiron’s gravitational pull and is slowly taking the shape of a ring.
Scientists have seen rings around small asteroids or dwarf planets before. But Chiron’s case is completely different and historic. Braga Ribas, an astronomer at the Federal University of Technology-Polana in Brazil, said that this is not a static ring system. By comparing data from 2011, 2018, 2022 and 2023, they found that these rings are changing very quickly.
