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Proposed Cause of 11-Year Sunspot Cycle - Hypothesis #5134774
06/15/19 09:24 AM
06/15/19 09:24 AM
Joined: Jun 2002
Posts: 20,218
Iowegia - USA
MolaKule Offline OP
Global Moderator
MolaKule  Offline OP
Global Moderator

Joined: Jun 2002
Posts: 20,218
Iowegia - USA
Quote
One of the big questions in solar physics is why the sun’s activity follows a regular cycle of 11 years. Researchers discovered that the tidal forces of Venus, Earth and Jupiter influence the Sun’s magnetic field, thus governing the solar cycle.

The scientists systematically compared historical observations of solar activity from the last thousand years with planetary constellations, statistically proving that the two phenomena are linked. “There is an astonishingly high level of concordance: what we see is complete parallelism with the planets over the course of 90 cycles,” said Frank Stefani, lead author of the study with Helmholtz-Zentrum Dresden-Rossendorf (HZDR), an independent German research institute. “Everything points to a clocked process...

11-Year Sunspot Cycle


"Science is a body of knowledge, a 'recipe', as it were, for reality. The totality of science is a collection of hard-earned nuggets, using math as a language of expression." Chip Cohen
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5134798
06/15/19 10:14 AM
06/15/19 10:14 AM
Joined: Dec 2006
Posts: 8,753
Canuck living in California
KrisZ Offline
KrisZ  Offline

Joined: Dec 2006
Posts: 8,753
Canuck living in California
Very interesting, thanks for posting. I didn't even know the sunspot cycle was so regular.


2015 Grand Caravan 3.6L - 31k miles.
2006 Mazda 3 2.0L - 171k miles
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5134799
06/15/19 10:14 AM
06/15/19 10:14 AM
Joined: Feb 2003
Posts: 8,541
Jupiter, Florida
Cujet Online content
Cujet  Online Content

Joined: Feb 2003
Posts: 8,541
Jupiter, Florida
Fascinating. It's interesting that it took this long to figure that one out.

As a rank amateur astronomer, I find all of it interesting. When I attend NASA lectures on various probes, I'm always impressed with the level of knowledge. So much data is unpublished and only available to the scientists involved.

Gravity: Earth and sun pull on each other with a force equal to 3.52 x 10^22 newtons. Seems like enough to have an effect.

The total density of the sun is said to be about 1.4 x that of water. But the outer "layers" are said to be about 1/5th that of earth. Or about like heavy packing peanuts.


It's also interesting that the sun was considered a variable star in the distant past. Some still consider it so. Plenty of implications with that one...

Last edited by Cujet; 06/15/19 10:20 AM.

People who count on their fingers should maintain a discreet silence.
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135056
06/15/19 03:48 PM
06/15/19 03:48 PM
Joined: Dec 2006
Posts: 8,753
Canuck living in California
KrisZ Offline
KrisZ  Offline

Joined: Dec 2006
Posts: 8,753
Canuck living in California
As usual, crickets in this informative thread. I bet if this thread was about sunspot cycle and aliens, we would be 10 pages in by now.


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Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135079
06/15/19 04:29 PM
06/15/19 04:29 PM
Joined: Jun 2012
Posts: 2,071
High Tax Illinois
oldhp Offline
oldhp  Offline

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High Tax Illinois
The sun has aliens on it? Now yer a talkin'.


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Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135083
06/15/19 04:49 PM
06/15/19 04:49 PM
Joined: Sep 2005
Posts: 6,474
MIchigan
Warstud Offline
Warstud  Offline

Joined: Sep 2005
Posts: 6,474
MIchigan
Haven't seen much sun here...gloomy and rainy

Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135109
06/15/19 05:27 PM
06/15/19 05:27 PM
Joined: Feb 2003
Posts: 8,541
Jupiter, Florida
Cujet Online content
Cujet  Online Content

Joined: Feb 2003
Posts: 8,541
Jupiter, Florida
More than 100,000 variable stars are known and have been catalogued, and thousands more are suspected variables. Our own sun is a variable star; its energy output varies by approximately 0.1 percent, or one-thousandth of its magnitude, over an 11-year solar cycle.

http://simostronomy.blogspot.com/2010/02/sun-is-variable-star.html

[Linked Image]



People who count on their fingers should maintain a discreet silence.
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135167
06/15/19 07:01 PM
06/15/19 07:01 PM
Joined: Jul 2014
Posts: 1,198
Winnipeg MB CA
Number_35 Offline
Number_35  Offline

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Posts: 1,198
Winnipeg MB CA
Wow, fascinating - thanks so much for posting. Where are we in the 11-year cycle as of mid-2019?

Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: Cujet] #5135195
06/15/19 07:36 PM
06/15/19 07:36 PM
Joined: Apr 2012
Posts: 6,886
MA
Wolf359 Offline
Wolf359  Offline

Joined: Apr 2012
Posts: 6,886
MA
Originally Posted by Cujet
More than 100,000 variable stars are known and have been catalogued, and thousands more are suspected variables. Our own sun is a variable star; its energy output varies by approximately 0.1 percent, or one-thousandth of its magnitude, over an 11-year solar cycle.

http://simostronomy.blogspot.com/2010/02/sun-is-variable-star.html

[Linked Image]


Well for interesting stars, there's always Tabby's star. Although it's probably just cosmic dust, speculation was that it could be the start of a Dyson's Sphere or Swarm as it had dimmed by about 20%.

https://medium.com/futuresin/aliens-and-tabbys-star-everything-you-need-to-know-f8389b8f402a

Regardless of whether you believe in global warming or not, the sun is on track to heat up and get hotter as it fuses more hydrogen into helium and it will eventually turn into a red giant in about 5 billion years. But in just a billion years, the sun will be 10% hotter and the earth will be about 100 degrees hotter.

https://www.learnastronomyhq.com/articles/why-the-sun-will-become-hotter-and-brighter.html

https://www.space.com/22471-red-giant-stars.html

Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135206
06/15/19 07:53 PM
06/15/19 07:53 PM
Joined: Dec 2002
Posts: 43,181
'Stralia
Shannow Online content
Shannow  Online Content

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'Stralia
Thanks Molakule...that was really interesting.

(Tongue in cheek now) - so the sun is affected by Astrology ???


If it's the truth....it can handle the pressure !!!
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: Shannow] #5135228
06/15/19 08:22 PM
06/15/19 08:22 PM
Joined: Apr 2012
Posts: 6,886
MA
Wolf359 Offline
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MA
Originally Posted by Shannow
Thanks Molakule...that was really interesting.

(Tongue in cheek now) - so the sun is affected by Astrology ???


How come Astrology doesn't factor in those 2 trillion galaxies with their 100-400 billion suns each?

Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135449
06/16/19 06:14 AM
06/16/19 06:14 AM
Joined: Nov 2002
Posts: 31,408
NJ
buster Offline
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NJ
Quote
As with the gravitational pull of the Moon causing tides on Earth, planets are able to displace the hot plasma on the sun’s surface. Tidal forces are strongest when there is maximum Venus-Earth-Jupiter alignment; a constellation that occurs every 11.07 years. But the effect is too weak to significantly perturb the flow in the solar interior, which is why the temporal coincidence was long neglected.

However, the HZDR researchers then found evidence of a potential indirect mechanism that may be able to influence the solar magnetic field via tidal forces: oscillations in the Tayler instability, a physical effect that, from a certain current, can change the behavior of a conductive liquid or of a plasma. Building on this concept, the scientists developed their first model in 2016; they have since advanced this model in their new study to present a more realistic scenario


I was going say I didn't think the effect would have been strong enough due to the size of the sun but this mechanism they are referring to may be the answer. Interesting. I'm curious how the Sun impacts our climate.

I'm also curious how serious a CME would be and how likely the next big one would be.


2015 Mazda 3 2.0 - Mobil 1 EP 0w20
Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135467
06/16/19 06:53 AM
06/16/19 06:53 AM
Joined: Jun 2008
Posts: 5,794
In the Garage...
ls1mike Online content
ls1mike  Online Content

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In the Garage...
I remember following solar flux and sunspot activity as a radioman as it could affect communications.


Mike
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Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5135624
06/16/19 10:40 AM
06/16/19 10:40 AM
Joined: May 2012
Posts: 6,710
Fort Lauderdale, FL
DoubleWasp Offline
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Fort Lauderdale, FL
The one that really raises my eyebrows is the solar activity that blew up telegraphs and set papers on fire almost 200 years ago, and how were kinda overdue for another similar event.

The sun is one heck of an interesting character.


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Re: Proposed Cause of 11-Year Sunspot Cycle - Hypothesis [Re: MolaKule] #5136006
06/16/19 06:52 PM
06/16/19 06:52 PM
Joined: Sep 2009
Posts: 16,785
OH
fdcg27 Offline
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OH
Is there also a much longer cycle of variability in solar output?
We know that our current ice age was preceded by much warmer conditions in the far South and far North and we also know that things have been much colder not that long ago, like when the place where I'm sitting was covered in a kilometers thick glacier, which also gouged out the basins of what are now the Great Lakes.
The differentiation between glaciated and unglaciated land is sharp, with the unglaciated land quite close to here being hilly, rocky and untillable while the glaciated land is mostly flat with rolling hills and is easily farmed.
Interesting what we're learning about solar output, climate and weather, although it's not as though we can do anything about it.


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