First detailed observation of atmosphere of planet 900 light years from Earth

Wind speeds many times faster than bullets leaving the planet Tylos challenge humanity's understanding of how weather works on distant worlds.

Weather simulation on the planet Tylos, with orange areas having temperatures higher than 2,000 degrees Celsius

Astronomers have created the first detailed map of a planet's atmosphere, revealing the fastest winds ever observed around a celestial body in the vast universe.

The results showed that the powerful sodium-rich wind traveled at more than 72,420 km/h on a narrow path along the equator of Tylos, an extrasolar planet about 900 light years from Earth. Meanwhile, the speed of a bullet leaving the barrel is about 3,000 km/h.

Below the wind stream are slower wind layers containing titanium and iron.

No human could survive in atmospheric conditions like those on the planet Tylos, according to a report published in the journal Nature .

Tylos is classified as a "superhot Jupiter", with a distance so close to its central star that a year on the planet is equivalent to only 30 hours on Earth.

One side of the planet Tylos is locked toward its central star, causing the day temperature to always be above 2,000 degrees Celsius. The other side is plunged into eternal darkness and is about 1,000 degrees Celsius hot. The boundary between day and night is always maintained in a state of twilight.

Researchers used the European Southern Observatory's (ESO) Very Large Telescope in Chile to collect light from Tylos' atmosphere that reached Earth. The data was analyzed for the signature of elements and compounds.

This is the first time that terrestrial astronomers have been able to study the structure of the atmosphere of an extrasolar planet.

"The atmosphere of the planet Tylos behaves in ways that completely challenge human understanding of how weather works, not just in Earth terms but for the entire planetary universe," said report author Victoria Seidel of ESO.

Source: https://thanhnien.vn/lau-dau-quan-sat-chi-tiet-khi-quyen-hanh-tinh-cach-trai-dat-900-nam-anh-sang-185250219160617427.htm