C3 images have a larger field of view, covering about 30 million miles (45 million kilometers) away the sun. C2 images show the inner solar corona up to 5.25 million miles (8.4 million kilometers) away from the sun. SOHO has two coronagraphs, referred to as C2 and C3. "Using new techniques to improve image fidelity, we realised that the corona is not smooth, but structured and dynamic," DeForest explains. The position of the solar disk is indicated in the images by the white circle. Solar Orbiter/EUI Team (ESA & NASA) CSL, IAS, MPS, PMOD/WRC, ROB, UCL/MSSL. The structures were there, but we hadn't been able to obtain a high enough image resolution to see them. They may play a role in heating up the sun's outer atmosphere, or corona. The position of the solar disk is indicated in the images by the white circle. Earlier this year, while the coronavirus was just a frightening omen confined to Wuhan, NASA and the European Space Agency (ESA) launched the Solar Orbiter. Except, as it turns out, that wasn't the case. LASCO is able to take images of the solar corona by blocking the light coming directly from the sun with an occulter disk, creating an artificial eclipse within the instrument itself. Instead, they showed the corona as a smooth, laminar structure.
If the turbulence was occurring at the source of the solar wind - the Sun - then we should have been able to see complex structures in the corona as the cause of it, but previous observations showed no such structures. "But how did it get that way? Did it leave the Sun smooth, and become turbulent as it crossed the solar system, or are the gusts telling us about the Sun itself?" "In deep space, the solar wind is turbulent and gusty," says solar physicist Craig DeForest of the SwRI. The best strategy is to choose one aperture.
SUN CORONA PICTURES FULL
When measurements of the solar wind are taken near Earth, the magnetic fields embedded therein are complex and interwoven, but it's unclear when this turbulence occurs. The inner corona is far brighter than the outer corona thus, no single exposure can capture its full dynamic range.
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