ESA captures highest resolution video of the sun
Miscellaneous / / April 04, 2023
This frame would fit 17 Earths.
The ESA-led Solar Orbiter mission made its second approach to the Sun. The probe, using the Extreme Ultraviolet Imager (EUI) apparatus, managed to capture the crown of the star in the highest possible resolution.
The moment of closest approach occurred on October 12, when Solar Orbiter was at a distance of 29% of the distance from the Earth from the Sun.
Each pixel in this video covers 105 km of the Sun's surface. This means that if the EUI were to capture the Earth at the same resolution and at the same distance, the entire planet would be 120 pixels wide. Roughly speaking, 17 Earths would fit in this frame from edge to edge.
The corona is the outer atmosphere of the Sun. It is called quiet when there is little noticeable activity, such as flares or coronal mass ejections. An electrically charged gas known as plasma is in constant motion here, guided and accelerated by changes in the magnetic field. The vaults of bright plasma in the roller are held in place by loops of magnetism erupting into the corona from inside the star.
The Sun is currently approaching its peak activity, known as Solar Maximum, in 2025.
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