These images of the Sun’s surface are breathtaking

These images of the Sun’s surface are breathtaking

These images of the Sun’s surface are breathtaking

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Built on the side of volcanoon the island of Mauiarchipelago of Hawaii, the telescope solar Daniel-K.-Inouye, – that of the National Science Foundation (United States) which was called beforeAdvanced technology solar telescope – is considered the most powerful telescope in the world intended to comply with our Sun. And a few days ago, on the occasion of its official inauguration – it has been collecting scientific data for several months – the teams responsible for its operation have published two new breathtaking images of our Star

Their quality is all the more incredible since we are not talking about a probe sent to “burn its wings” near the Sun. But a telescope on the ground. With a mirror 4 meters, perched at about 3,000 meters above sea level and protected from the elements light pollution And turbulence atmospheric from an ocean environment.

The solar chromosphere in all its states

On the two images published during the inauguration of the Daniel-K.-Inouye solar telescope, we discover the chromosphere ours Star. Understand the bass atmosphere of the Sun. This layer of gas placed just above its visible surface.

One of the images shows what astronomers called solar granulation. The phenomenon was first identified in the early 19th century.And century of William Herschel. Convective cells, as researchers have known since the 1930s, each about 500-1,000 kilometers wide. And whose duration life is rather short. Only about ten minutes.

The other image, equally fascinating, shows a sort of streaks that are actually nothing more than jets of plasma at very high temperature.

The surface of the Sun as you have never seen it!

Terrestrial solar telescope Daniel K. Inouye has just acquired the first images of the Sun. They are simply the finest and finest surface of the Sun ever. This unprecedented ability to observe the Sun promises a spectacular leap in knowledge of the phenomena at the origin of its activity that affects the meteorology space.

Article of Remy Decourt published on 30/01/2020

While theEuropean space agency and the NASA they are preparing to launch the probe Solar orbiter in a few days and that the American Parker solar probe approached only 19 million kilometers from the Sun, it is a terrestrial solar telescope that makes news. In fact, the Daniel K. Inouye solar telescope (DKIST for Daniel K. Inouye solar telescope), whose commissioning is scheduled for this summer, has acquired its first and most accurate images of the Sun’s surface ever recorded. The smallest details that can be discerned are just 30 kilometers in size! What, on the scale of the Sun, a star that has a diameter of nearly 1.4 million kilometers, is microscopic.

Convection cells in perpetual motion

What we see are the cells of convection that make up the surface of the Sun. They measure more or less 1,000 kilometers in diameter and are constantly changing. They deform, appear and disappear according to the movements that occur under the Sun’s surface and that cause the hottest gas to rise from the inside of the star to the surface.

The DKIST terrestrial solar telescope reveals unprecedented details of our Sun. © NSO, YouTube

Built on Mount Haleakala on the island of Maui in Hawaii, the DKIST is the largest solar telescope in the world capable of capturing ultra-detailed images of the Sun’s surface, and this with a resolution twice as many other solar observatories in service. Until now, solar telescopes had mirrors with a diameter of up to 1.50 meters. This off-axis telescope features a 4.2 meter diameter active primary mirror with thermal control and adaptive optics. DKIST is also the most complex and technical solar telescope currently in service.

This telescope was designed to better understand the role of the Sun, primarily its own magnetic fieldin space time.

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