Meanwhile the Sun is up to some major changes it appears.
**************************************EXCEROT****************************************
Dr. Lurtz says:
My Explanation:
a) Hydrogen burning occurs on the surface of the Sun’s Core.
b) Hot Sun [more fusion], Core expands making more H available from the Radiative Zone.
c) When the amount of H becomes less available [near the Core's surface] , the Core starts to shrink [less fusion] and the Sun becomes cooler.
d) Core shrinks until a new equilibrium is found [the Core is growing by fits and leaps -> it is the waste volume for burned H, that is, He].
e) Repeat the process.
Hot Sun [more fusion], massive inflowing H currents. Cool Sun [less fusion]. less inflowing H currents. Hot Sun, the H currents generate massive magnetic fields and produce Sun Spots. Cool Sun, the H currents are less, the magnetic field declines and, possibly, no Sun Spots.
During the Maunder Minimum, the Sun was cool for ~50 years. Faint traces of a 2×180 year cycle in the climate record [?? is there such a thing ??].
“Major regime transition” -> Sun cooling, core shrinking.