Re: Solar rotation period

In message <1137956667.790996.24230@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, oriel36 <geraldkelleher@xxxxxxxxx> writes 
Hi Axel

http://www.astronomynotes.com/starsun/sun-rotation.gif

The answer of course exists in the association between differential
rotation and a deviation from a perfect sphere.

But the Sun _is_ almost a perfect sphere, with a difference between polar and equatorial diameters of milliarcseconds at best.


While the Equatorial bulge of the Earth is a misnomer given that the
deviation covers the entire geometry from pole to Equator ,it is far
easier to use the Sun's surface as a rough guide and the differential
rotation bands that straddle the Equator and move in bands towards the
poles.


What differential rotation bands?


Geologists will not recognise the profile of the Earth as a geological
feature  even though the motion of the component crustal plates which
profile the Earth's shape is better explained by differential rotation
bands than a stationary Earth/convection cells model.


Geologists are intensely interested in the profile of the Earth.
Are you trolling, or just a complete idiot? (which aren't exclusive)
.

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