Astronomers study old data and find more than half a million new asteroids

A pair of astronomers have discovered and classified half a million new asteroids, information about which is available in the

Figuring out exactly where these objects came from can beimportant for understanding the properties of the early Solar System.

Alexei Sergeev and Benoît Curry of the University of the Côte d'Azur in France discovered these objects by automatically analyzing images from the Sloan Digital Sky Survey (SDSS).This is a large-scale project, the results of which were presented in 2020.Scientists have been collecting data for more than 20 yearswith the help of a telescope at the Apache Point Observatory (New Mexico, USA).

Based on the collected data, astronomers have created more and more detailed maps of the cosmos. The result of the study was a huge three-dimensional map that covers the entire history of the formation of the Universe.

Scientists have determined the trajectory of the movement of the astroid Bennu, which is dangerous for the Earth,

As a result of the analysis, scientists released a catalog of1.5 million, consisting of 1,036,322 observations of 379,714 known and unique space objects. However, they also discovered 506,000 moving objects that were previously unknown to scientists. The catalog completeness is estimated at about 95%, and the purity is over 95% for known space objects.

Scientists added that the small bodies of the solar system(asteroids, comets) are used to limit the options for the origin and evolution of the solar system. Their orbital distribution and composition distribution are necessary to track the dynamic path from the regions of their formation to their present location.

Read more

Giant iceberg A74 collides with the coast of Antarctica

Two new dinosaur species discovered in China

What is the Kessler effect, and also when and what will the collision of satellites in orbit lead to?