Science, Space and Technology News 2024
NASA’s Solar Dynamics Observatory captured this image of a solar flare – as seen in the bright flash in the upper left of the Sun – on February 22, 2024. The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares and which is colorized in bronze. Credit: NASA/SDOThis particular solar flare has been classified as an X6.3 flare.
That X6.3 flare was the third significant solar flare within 24 hours. Earlier the Sun emitted two strong solar flares, the first one, classified as an X1.8 flare, peaked at 6:07 p.m. EST on February 21, 2024. The second one, classified as an X1.7 flare, peaked at 1:32 a.m. EST on February 22, 2024. SDO’s primary goal is to understand the Sun’s influence on Earth and near-Earth space by studying the solar atmosphere in many wavelengths simultaneously. It is equipped with a suite of instruments that allow scientists to monitor the Sun’s magnetic field, its surface, and atmospheric activities in high resolution.
Within these classes, flares are further ranked by a numerical value from 1 to 9, which indicates their specific strength within their class. However, X-class flares can exceed 9, reflecting their extreme intensity. For instance, an M1 flare is ten times less intense than an X1 flare, highlighting the significant jump in power between these classes. Similarly, an M2 flare is twice as intense as an M1 flare, demonstrating the logarithmic scale within each class.
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