How the sun’s creepy sunspots look in the new high-ray picture closeup

One of the most powerful solar observatories in the world has just completed a major upgrade. And now, the GREGOR solar telescope in Spain has taken some of the highest-resolution images of our sun received in Europe.

In the new images from the Advanced Telescope, details of up to 50 kilometers (31 mi) can be discerned between the movement of the Sun’s surface.

“It was a very exciting, but extremely challenging project,” said physicist and GREGOR chief scientist Lucia Clint of the Leibniz Institute for Solar Physics (KIS). “In just one year we completely redesigned optics, mechanics and electronics to achieve the best possible image quality.”

Gregor (left) and his redesigned optics (right). (kiss)

Interestingly, while COVID-19 lockdowns have been a hindrance to scientific research, in this instance, they proved to be helpful. According to a post on the KIS website, scientists were stranded at the observatory during the March lockdown in Spain. Instead of wasting time, he got the job of setting up an optical laboratory.

They were able to correct two important problems initiated by a pair of mirrors, coma, and astigmatism, resulting in blurred and distorted images. Due to the design of the optics laboratory, and the limited space therein, these mirrors had to be completely replaced with off-axis parabolic mirrors, accurately polished to within 1 / 10,000th of the width of a human hair.

Snowstorm interrupted the comments for some time, but when Spain reopened in July, the Gregor team first fire their advanced telescope.


New first light images show solar corpuscles in solar plasma, the apex of convection cells. The middle of each granule is light; This is why hot plasma rises from below. This plasma moves outward as it cools, then falls back deeper into the deep edges of each granule.

They look a bit like popcorn, but don’t be fooled – a typical mage is just 1,500 percent (930 mi) more than just 10 percent of the Earth’s diameter.

Another image and video shows the lone sunspot that caught the Sun’s face on 30 July 2020. This is a temporary region where the Sun’s magnetic field is particularly strong, which inhibits the normal surface convection activity of the Sun; It appears darker on the surface of the Sun because it is cooler than the surrounding material.

Sunspot photo(kiss)

These sunspot fields are of intense interest to us, as these magnetic field lines snap, tangle, and reconnect. That magnetic cohesion results in abundant amounts of energy, producing solar flares and coronal mass ejections – a phenomenon that can affect us here on Earth, disrupting satellite navigation and communications.

Images obtained by GREGOR, and other high-resolution solar observatories in Hawaii such as Daniel K. The Inuay Solar Telescope, with a resolution of 30 kilometers with the Big Bear Solar Observatory in the US, can help us understand better. These solar processes.

Besides, we will never get tired of looking at the mind-blowing images of the surface of our sun.

A paper has been published describing the upgrade of the telescope Astronomy and Astrophysics.


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