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Friday, October 07, 2022

This Solar Telescope Captures Details of the Sun’s Chromosphere

The chromosphere is usually difficult to see because of the light from the photosphere.

republica.co.id, JAKARTA – The world’s most powerful solar telescope has captured the first detailed image of the Sun’s chromosphere, the layer of its atmosphere just above its surface. The newly released chromosphere image shows an area of ​​about 51,000 miles (82,000 kilometers) and was captured by the world’s most powerful solar telescope, Daniel’s Inoue Solar Telescope (DKIST), in Hawaii on June 3, according to a statement.


DKIST is in a one-year transition period between construction and routine science operations, during which it collects selected observations from the Sun, among instrument work and other final preparations.


The chromosphere, like the outer layer of the Sun’s atmosphere, called the corona, is usually difficult to see because light from the photosphere, which can be loosely described as the surface of the star, usually extends beyond it happens. This region can usually be seen as a bright red ring around the Sun’s main body in images taken during a total solar eclipse, when light from the photosphere is blocked by the Moon.


But Daniel’s Inoue Solar Telescope, built and operated by the National Solar Observatory (NSO) and funded by the National Science Foundation (NSF), has changed that. The telescope aims to revolutionize solar physics, including scientists’ understanding of the Sun’s magnetic field.


One of its major areas is the study of space weather, eruptions from the Sun that include bright solar flares and coronal mass ejections (CMEs) that shoot clumps of material into space. Space weather can be hazardous to communications and energy infrastructure on Earth; It is of particular priority now that the 11-year cycle of solar activity is increasing.


DKIST is located on the island of Maui, Hawaii, on the site of Haleakala Observatory, an important site of spiritual and cultural importance to Native Hawaiians. At 10,000 feet (3,000 m) and surrounded by the ocean, this location provides the telescope with the long daylight hours needed for solar telescopes and clear with minimal interference from Earth’s atmosphere needed to observe the corona and solar chromosphere. the sky provides.


DKIST uses the largest mirror of all solar study instruments. This 13 feet (four meters) wide mirror helps the telescope collect more sunlight than any other solar telescope. The result is the clearest and highest resolution image of star space ever collected.


On August 31, NSF leaders and members of the scientific community and Native Hawaiians met at the facility to officially inaugurate the telescope, which has been operating for a quarter century.


“NSF’s Inouye Solar Telescope is the world’s most powerful solar telescope that will forever change the way we find and understand our Sun,” NSF Director Sethuraman Panchanathan said in a statement.


“Their insights will change the way our nation and planet predict and prepare for events like solar storms.”

This Solar Telescope Captures Details of the Sun's Chromosphere

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