For the millions of people across North America who will be treated to a total solar eclipse on April 8, it will be spectacular show — a chance to see the…
For astrophysicists, the eclipse is a rare opportunity to study the sun — particularly its outer atmosphere, or the corona, which normally can’t be seen.One of the agency’s main priorities will be to observe the sun’s outer atmosphere, or the corona, which normally can’t be seen because the star is too bright. During a total solar eclipse, the corona comes into view as faint wisps around a glowing halo when the moon blocks light from the sun’s surface.
“A total solar eclipse is like nature’s perfect coronagraph,” he said. “The moon comes between us and the sun, and it’s exactly the right size in the sky to block out the disc of the sun but not too much more.” “We didn’t know what we would get,” he said. “It was nail-biting for quite some time, and then we got amazing data. I could see it coming down off the live satellite feed.”
Many researchers plan to gather data about the sun’s atmosphere from other vantage points during the eclipse, including from space., will have their eyes trained on the sun throughout the celestial event. The probe launched in 2018, so it wasn’t available to study the 2017 solar eclipse. The sun has been ramping up toward a peak in its roughly 11-year cycle of activity, expected in 2025. That means the Parker Solar Probe will have a front-row seat should any eruptions belch from the sun.
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