These images of the Sun reveal unprecedented detail on its surface

L’équipe qui opère le télescope solaire Daniel-K.-Inouye vient de publier deux nouvelles images magnifiques de notre étoile. © NSO, AURA, NSF

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Built on the side of The study of volcanoes is volcanology or volcanology. Volcanic activity is one of…” data-image=” jpg” data- url=”” data-more=”Read more”>volcanoon the island of Maui from Examples of archipelagos
We can mention the Bahamas archipelago, the Philippine archipelago, the Canary Islands, the Seychelles…” data-image=” 0/ da0371eb47_50036532_bahamas-paradise-bay-bahamas-com.jpg” data-url=”” data-more=”Read the definition”>archipelago of Hawaii, the telescope Solar Daniel-K.-Inouye, — the one of the National Science Foundation (United States) who was called before theState-of-the-art solar telescope — is considered to be the most powerful telescope in the world The Sun is the closest star to Earth, from which it is about 150 million kilometers away. The Sun is 8.5 kparsecs from the center of the Milky Way. In stellar classification, the sun is a G2-type star.
The mass…” data-image=”” data-url=”https://news.” data-more=”Read more”>Sun. And a few days ago, on the occasion of its official inauguration -it has already been collecting scientific data for several months-, the teams in charge of its operation published two new impressive images of our Star.

Its 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 4-meter mirror, hanging at about 3,000 meters above sea level and protected from the light pollution and in a…” data-url=”” data-more=”Read more”>turbulence atmospheric by an oceanic environment.

The solar chromosphere in all its states

In the two images published during the inauguration of the Daniel-K.-Inouye solar telescope, we discover that the solar chromosphere is characterized by its red color due to the presence of certain lines of the hydrogen spectrum (Halpha line). It is a layer about 10,000 km thick, whose temperature increases…” data-url=”” data-more=”Read more “>atmosphere of our star. understand the bass sun atmosphere. This layer of gas located just above its visible surface.

One of the pictures shows what astronomers call the solar granulation. The phenomenon was first identified in the early 19th century, for William Herschel. Convective cells, as researchers have known them since the 1930s, are each between 500 and 1,000 kilometers long. And whose shelf life is quite short. About ten minutes only.

The other image, just as captivating, shows some kind of stripes that are really nothing more than plasma jets at very high temperature.

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

The Daniel K. Inouye Solar Ground Telescope has just acquired its first images of the Sun. They are simply the finest and best of the Sun’s surface ever taken. This unprecedented ability to observe the Sun promises a spectacular leap in knowledge of the phenomena that give rise to its activity and that influence the meteorology space.

article of Remy Decourt published on 01/30/2020

The European Space Agency is Europe’s gateway to space. Its mission is to shape European space capability development activities and make…” data-image=” 09f0b05e28_50034401_logo -esa-fs .jpg” data-url=”” data-more=”Read more”>European Space Agency and the POT prepare 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 ground-based solar telescope that is in the news. In fact, the Daniel K. Inouye Solar Telescope (DKIST by Daniel K. Inouye Solar Telescope), scheduled for commissioning this summer, has acquired its first and most accurate images of the Sun’s surface ever recorded. The smallest details that can be discerned there are just 30 kilometers in size! Which, on the scale of the Sun, a star almost 1.4 million kilometers in diameter, is microscopic.

Convection cells in perpetual motion

What we see are the convection cells that make up the surface of the Sun. They measure about 1,000 kilometers in diameter and are constantly changing. They deform, appear and disappear according to the movements that occur below the Sun’s surface and cause hotter gas to rise from the interior of the star to the surface.

The ground-based solar telescope DKIST reveals unprecedented details of our Sun. © NSO, YouTube

Built on Haleakala Mountain on the island of Maui in Hawaii, DKIST is the world’s largest solar telescope capable of acquiring ultra-detailed images of the Sun’s surface, and this with a resolution twice as high as other solar observatories in service. Until today, solar telescopes had mirrors with a diameter of up to 1.50 meters. This off-axis telescope is equipped with 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, mainly its magnetic field, magnet, and…” data-image=” a /a/6aa47f5f22_85914_magnetic-field.jpg” data-url=”” data-more=”Read more”>magnetic fieldin space weather.

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