Afterward NASA hit The spacecraft under the asteroid, its trajectory has changed. After that, she changed slowly but accurately – and this was still a mystery.
In 2022, the Dart mission sent a device weighing nearly 600 kg to a small asteroid shape, revolving around a larger Didim.
Before the collision, Dimorph made a revolution in 11 hours 55 minutes. Observations right after the blow showed that the collision has reduced the trajectory period by about 30 minutes, but in the next weeks and months, the orbit decreased by another 30 seconds.
Astronomers think that this may be due to the loss of debris formed from the shot and there is no scattered at times – this is completely natural, leading to reducing the energy of the entire system and thus reducing trajectory.
At Core D'Azur University in Nice, they analyzed the data to reject this hypothesis. His result Accepted to publish in the journal Astronomy & Physics.
The authors came to the conclusion that Dimorph was not large or thought to throw fragments outside the system.
Stone can fly over Dimorph, and Dimorph will throw it into a broader trajectory. This may happen, but the stone will eventually return and will come closer to the farmer.
According to him, an explanation of the ability to change in the Dimmorph trajectory may be a rotation given to him with a shot, causing the movement of stone and pebbles on its surface forward and backward. Friction occurs during the sliding process and clashes of these rocks to emit heat. The loss of energy in the form of heat can explain the decrease of an orbit of a asteroid, although this is not modeled in the study, saying an Agureus.
Move the material on the surface that changes the attractive potential energy of Dimorph itself. This may be through a decrease in the trajectory period for a month or longer, because it will be a long process, he continues.
The planet 2025 Su4 has been near the Earth at the height of the satellites
Research, although it emphasizes the complexity of predicting changes in the orbit of the asteroids after a shot, without special practical benefits, Agricus realized. This is due to the fact that the dual asteroid systems, such as Dimim and Dimorph, are quite rare, and this effect is difficult for a planet that changes its trajectory around the sun, that is, it can be truly dangerous.
