Ian Wilson’s Evolving Research.

Ian Wilson has been slowly developing his theory on spin orbit coupling whereby the planets affect the rotation rate of the Sun. Ian is an Australian Astrophysicist that has published many papers and also posts his theories on his blog.


Recently Ian has been producing new data that supports a tidal and gravity function that correlates with the sunspot cycle length observed over the past 400 years.

The theory is based on Jupiter’s gravity pulling and pushing on the solar tidal bulge created by Earth and Venus. If the conditions are right this could slow or speed up the solar rotation rate over the solar cycle. The rotation rate of the Sun is difficult to measure, but the research that is available suggests there is indeed a variance in solar rotation when comparing the up and down side of a solar cycle.

When looking at the tidal data it can be seen it correlates well with the sunspot cycle length record. This was also noted by researcher Desmoulins (below) some time ago where he graphed the “most aligned days” of Jupiter/Earth and Venus.

Ian has added much more detail to this research and also provides mechanisms and formulas to back up his research. The time scales have also been increased with Ian going back to 1600 and forecasting out to 2030. One outstanding aspect of the research is that the cycles mainly stay in phase but occasionally go out of phase slightly but then return to full synchrony. This is substantial and suggests strongly that the two cycles are linked.

The next aspect is that the cycles go out of phase just before or around the time of grand minimum and then return to synchronization when the solar cycles return to normal. So determining what controls this out of phasing might give us some insight into what controls grand minima along with better solar cycle forecasting. I believe this is where Ian’s research merges with mine as during times of phase difference in every case we also see a green arrow on Carl’s graph. This is the AMP event where the solar angular momentum is perturbed. Below is a new version of Carl’s graph that slightly amplifies the AMP events and shows good matching with Ian’s and Desmoulin’s work.

Click on the image for a full sized view.

The AMP events are induced by the four outer planets which poses a problem, the times of phase difference on Ian’s graphs that also line up with AMP events are from different background mechanism’s. Ian’s work is based on gravity and tides and by doing the maths we can see that Jupiter is the last planet which could have a tidal effect on the Sun. The AMP events are a measure of angular momentum of the Sun as it cycles around the centre of mass of the solar system (SSB) where the most outer planets are responsible for the AMP event. Perhaps the AMP event also has an impact on solar cycle length because of the disruption to the solar dynamo? I would be interested to expand on this issue with Ian.

Also of interest is the forecast for the next few cycles. Ian’s data and predictions agree with my own and show that SC24/25 will be grand minimum type cycles and then a recovery is expected. This is clearly seen in Ian’s graphs with the re aligning of the two phases and my own research shows no further strong AMP events after SC24. This puts us in contention with Landscheidt who predicted a supersectular minimum (grand minimum) to be at its deepest at 2030 and be a Maunder type event. Although incredibly important I believe Landscheidt’s work is now shown to be off the mark as he unbelievably missed the all important AMP event. There are also many scientists and others around the world getting on the band wagon that are also predicting a Maunder type event….I feel Ian and I are on the Mark.

Please visit Ian’s Blog listed at the head of this article, there is a host of information and research that is breaking new ground.

One comment on “Ian Wilson’s Evolving Research.

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