Retrieving "Polar Plumes" from the archives

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1. Corona

   Linked via "polar plumes"

   Structure and Morphology
   The appearance of the corona/ varies depending on the solar cycle/ phase and the observer's location relative to the Sun's magnetic poles/. During periods of high solar activity/ (solar maximum/), the corona/ appears more uniform and extended. During solar minimum/, the structure is highly collimated, featuring distinct polar plumes/.
   The structure is largely …