Astronomers have detected winds on WASP-127b, an exoplanet, reaching speeds of about 20,500 miles per hour, making it the planet with the fastest jet stream winds known.
<p>WASHINGTON — In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles per hour, but they are not the strongest in our solar system.
The comparable high-altitude winds on Neptune reach about 1,200 miles per hour. Those, however, are a mere breeze compared to the jet-stream winds on a planet called WASP-127b.</p><p>Astronomers have detected winds howling at about 20,500 miles per hour on this large gaseous planet, located in our Milky Way galaxy approximately 520 light-years from Earth in a tight orbit around a star similar to our sun. A light-year is the distance light travels in a year, 5.9 trillion miles.</p><p>The supersonic jet-stream winds circling WASP-127b at its equator are the fastest of their kind on any known planet.</p><p>"There is an extremely fast circumplanetary jet wind found on the planet. The velocity of the winds is surprisingly high," said astrophysicist Lisa Nortmann of the University of Göttingen in Germany, lead author of the study published on Tuesday in the journal Astronomy & Astrophysics.</p><p>More than 5,800 planets beyond our solar system — called exoplanets — have been discovered. WASP-127b is a type called a "hot Jupiter," a gas giant that orbits very close to its host star.&#
Exoplanet WASP-127B Jet Stream Winds Astronomy
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