the corona from test 2 flashcards

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Flashcard (Front and Back)

Front (Question)

the corona

Back (Answer)

the upper layer of the sun, extends over 500,000 miles above the photosphere, can only be seen during a complete solar eclipse, emits x-ray radiation (which must be studied from orbit because it cannot make it through earth's ionosphere), temperature is about 1,000,000 K (caused by magnetic field activity above photosphere)

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