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Des données du télescope spatial Hubble montrent que les vents aux limites de la Grande Tache rouge de Jupiter se sont accélérés au cours de ces dix dernières années. Photo : détails de la Grande Tache rouge de Jupiter photographiée par la sonde spatiale Juno. © Nasa, JPL-Caltech, SwRI, MSSS, Image processing by Kevin M. Gill, © CC BY

Winds are accelerating along the edges of Jupiter’s Great Red Spot

This is the biggest storm in our solar system. Big red dot. Astronomers tell us today that its wind – at least within its range – accelerates.

The Big red dot, Which is an almost mythical figure of Jupiter. Its unique identity. A gigantic Anticyclone Which extends intoAtmosphere From The giant planet More than 15,000 km long and nearly 12,000 km wide. So this is slightly larger than the size of our own earth! And this Holes It is thrown there at an insane speed of over 640 kilometers per hour.

But today, Astronomers The University of California, Berkeley (United States) reports that the average wind speed increased by 8% within the red spot gradient range between 2009 and 2020. Quiet.

This result, the researchers thanked for the temporary coverage – more than 30 years now – and Resolution Space – The machine on Jupiter can distinguish only the 170 km diameter of the Hubble Space Telescope. And a Software This made it possible to follow hundreds of thousands of wind vectors each time Hubble observed The largest planet in the solar system. “Only a space telescope can capture Jupiter’s air in great detail.”, Says Amy Simon from Goddard Space Aviation Center From NASA, A Contact D L’ESA. The evolution here is really weak. The Earth is less than 2.5 kilometers per year.

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Understanding the Physics of the Great Red Spot

Astronomers need to work now to understand what this increase is Wind speed. Very difficult task, because Hubble could not see the bottom of the high pressure well. But researchers are curious. This is an interesting part of the puzzle that will help you understand what fuels the Great Red Spot and how it maintains its energy. “

Keep in mind that this has fascinated astronomers since the 1870s. From then on, they understood that it had a wedding cake texture. Many sites with Clouds Topping the center that falls on the outside. The researchers also noted that the size of Jupiter’s Great Red Spot decreased and became circular over time.

On other planets, as well Neptune, Astronomers note that storms will disappear in a few years. So the Great Red Spot is an exception. But this latest work will help clarify the physical mechanisms that scientists create and maintain Storms on the planets Of The Solar System.

The future in the starsThis is an unavoidable meeting place for astronauts and astronauts. Visit us for a complete tour of the Epimeris of the month, with advice on how to better observe what is happening in the sky on the 1st of each month. A special chapter published every 15th month invites you to learn more about a specific subject or event that represents astronomical and space news.

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