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Planetary Influence of Solar Activity?
Thanks to Tommy for giving me this link.

For years now, the idea that certain high mass planets, such as the major Jovian planets, are able to influence the solar activity of the sun, have been scoffed at within the scientific community. The lead proponent of this theory was Dr Theodor Landscheidt, who died in 2004. And he was called a kook because he also relied on astrology for following planetary locations.

Beyond Landscheidt: Planetary Theory Moves to the Next Level

Landscheidt Cycles Research

So, What's New In Our Universe?

Theodor landscheidt: Sun-Earth-Man and the Kepler ratios

Well, it looks as though he is actually being proven right, and more scientists are starting to subscribe to this theory. This position paper appeared in 2008: Does a Spin–Orbit Coupling Between the Sun and the Jovian Planets Govern the Solar Cycle?

And here is the newest position paper, which officially appeared in "Astronomy and Astrophysics" in December of last year: Is there a planetary influence on solar activity?. The actual position paper can be found right here.

Here is the abstract:


Context. Understanding the Sun’s magnetic activity is important because of its impact on the Earth’s environment. Direct observations of the sunspots since 1610 reveal an irregular activity cycle with an average period of about 11 years, which is modulated on longer timescales. Proxies of solar activity such as 14C and 10Be show consistently longer cycles with well-defined periodicities and varying amplitudes. Current models of solar activity assume that the origin and modulation of solar activity lie within the Sun itself; however, correlations between direct solar activity indices and planetary configurations have been reported on many occasions. Since no successful physical mechanism was suggested to explain these correlations, the possible link between planetary motion and solar activity has been largely ignored.

Aims. While energy considerations clearly show that the planets cannot be the direct cause of the solar activity, it remains an open question whether the planets can perturb the operation of the solar dynamo. Here we use a 9400 year solar activity reconstruction derived from cosmogenic radionuclides to test this hypothesis.

Methods. We developed a simple physical model for describing the time-dependent torque exerted by the planets on a non-spherical tachocline and compared the corresponding power spectrum with that of the reconstructed solar activity record.

Results. We find an excellent agreement between the long-term cycles in proxies of solar activity and the periodicities in the planetary torque and also that some periodicities remain phase-locked over 9400 years.

Conclusions. Based on these observations we put forward the idea that the long-term solar magnetic activity is modulated by planetary effects. If correct, our hypothesis has important implications for solar physics and the solar-terrestrial connection.

The significance of all this is that Landscheidt's Cycles are soon to be accepted fact, which is going to completely change the way we look at how the sun affects the warming and cooling of this planet. And it will officially show how and why the Little Ice Age is so significant.

This also lends credence to the proposal of naming the next grand solar minimum the Landscheidt Minimum.
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