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TOKYO (Reuters) – A team of Japanese astronomers from the National Observatory of Astronomy (Astronomical Observatory) has announced the formation of planets around a sun-like star, DM Tau, to 470 light-years. .
"The mass of the star (DM Tau) is about half the mass of the sun.It would be between 3 and 5 million years old, compared to 4.6 billion years ago," he said. said Majid Abu-Zahra, head of the Jeddah Astronomical Society via Facebook.
The first group is located at the same distance as the asteroid belt of the Sun and the second ring, at the same distance as the orbit of the planet Neptune.The rings located at these distances indicate that we are witnessing the formation of a planetary system similar to our solar system.
The astronomical newspaper published the results in November 2018 and was presented this month by astronomers at the annual meeting of the Japanese Astronomical Society.
Previous observations have traced two different models of disk around the star (DM Tau), but observations from the Alma Observatory have provided a clear answer.
The researchers also discovered a shiny luster in the outer ring, indicating a concentration of dust, likely to constitute a potential site for the formation of planets such as Uranus or Neptune.
Astronomers discovered the internal details of the disc because the Earth had formed in a region of the Sun. The distribution of dust around the star (DM Tau) will provide important information to understand the origin of planets such as Earth. 4.6 billion years old.
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