Assertion: flux tube | /r/HasAspect | diameters of 6 × 10 4
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Source sentences:
text: There are extreme cases of when the large flux tubes have diameters of 6 × 10 4 {\displaystyle 6\times 10^{4}} km with a field strength of 3 kG. Sunspots can continue to grow as long as there is a constant supply of new flux from small flux tubes on the surface of the sun.