Engineering, 30.10.2019 20:31 joshnorman0369
Large groups of sunspots can be relatively long-lived (a few months) and they remain essentially fixed at the same physical location on the photosphere throughout their lives. suppose a sunspot appears to move from the center to the edge (limb) of the sun's disk in 7 days. what is the approximate rotation period of the sun? (a rough estimate will suffice; don't worry about not being able to see the sunspot if it is exactly at the edge of the sun.) [p.275 q.14]
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Large groups of sunspots can be relatively long-lived (a few months) and they remain essentially fix...
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