The planet has a gale of 8,700km / h and an atmosphere of 3,000 degrees Celsius

The study of Swiss astronomers indicates extraterrestrial HD 189733 b has the harshest weather in the universe.

Researchers at the University of Geneva and Bern, Switzerland, calculated winds on the extrasolar planet HD 189733 b with speeds of 8,700 km / h, 7 times the speed of sound, New Zealand Herald today reported. However, this condition is not severe enough compared to the glass rain on the planet, compared to "thousands of deadly cuts".

"The nightmare world in HD 189733 b is the death you have never encountered. When viewed from a distance, the planet is bright green, easily confused with the gentle sky of the Earth. But the weather here It is deadly , " commented the US Aeronautics Agency (NASA).

The planet's blue color is not a reflection of the ocean as it is on Earth but because of the planetary atmosphere, which consists of clouds interspersed with sillicat particles.

Atmosphere planet HD 189733 b has a temperature of up to 3,000 degrees C. (Photo: NASA / ESA).

HD 189733b is a giant gas planet larger than Jupiter at 63 light-years from Earth. The planet is in the constellation Vulpecula , also known as the "little fox". HD 189733b revolves around a parent star 13 times closer than Mercury to the Sun and completes an orbit in just 2.2 days.

According to Dr. Kevin Heng, head of the study, the finding is important because the results are based on observations from a small ground-based telescope with a diameter of 3.6m at the South European Observatory (ESO) in La Silla, Chile, but the measurements are of the same quality as the Hubble space telescope.

The technique used by Heng's team is to measure sodium signals from distant planets. When a planet passes in front of its parent star, this signal strength will change. Depending on the strength of the signal, astronomers can calculate the heat on the planet.

Because the signal emits from many different heights, the team can measure both temperature differences along the atmosphere. Near the ground, the planet's temperature decreases from 3,000 to 1,700 degrees C.

To measure wind power, they rely on changes in sodium signals to Earth. These changes indicate the wind on the planet moves in a cycle with super fast speeds. Measurements from the Hubble space telescope also yield similar results.

Research by Swedish scientists opens up the opportunity to learn about the atmosphere of distant exoplanets without using a massive observatory or space telescope.