Sun's Magnetic Pole Reversal & Current Location: North or South?

  • Thread starter Thread starter Bjarne
  • Start date Start date
  • Tags Tags
    Magnetic Pole
AI Thread Summary
The Sun's magnetic poles reverse approximately every 11 years, with the last reversal occurring in 2001, when the magnetic south pointed geographically north. The next expected reversal is around 2012, coinciding with heightened solar activity. The reasons behind the rapid pole reversals are not fully understood, though some hypothesize that internal energy buildup in the Sun leads to these changes during solar maximum. Discussions also touched on the humorous connection between the 2012 reversal and doomsday theories, as well as comparisons to magnetic reconnection processes. Overall, the Sun's magnetic cycle remains a topic of intrigue and speculation among enthusiasts.
Bjarne
Messages
344
Reaction score
0
The Sun's Magnetic poles reverses every 11 year.
Where is the magnetic North Pole now? - at geographic North or South?
 
Astronomy news on Phys.org
By quickly googling up our sun's magnetic cycle i can see that the latest reversal took place in 2001, at this time the magnetic south was pointed geographically north and magnetic north pointed geographically south. Each "flip" lasts about 11 years. So we can expect the next reversal to take place around the year 2012.
 
Mikeral said:
By quickly googling up our sun's magnetic cycle i can see that the latest reversal took place in 2001, at this time the magnetic south was pointed geographically north and magnetic north pointed geographically south. Each "flip" lasts about 11 years. So we can expect the next reversal to take place around the year 2012.

Oh lord, this must be one those things the 2012 doomsdayers are afraid of, right? If I may ask, why does the pole reverse so rapidly, given the mass and size of the sun, that seems rapid. In the case of a magnetar, does it do so at all, or is the switch a matter of microseconds?
 
Oh lord, this must be one those things the 2012 doomsdayers are afraid of, right?
I still find the concept of "2012" rather humorous although it does coincide with the solar cycle. Without getting to far into an "end of the world" discussion it does seem that the year 2012 is going to be an interesting year for solar activity.

If I may ask, why does the pole reverse so rapidly, given the mass and size of the sun, that seems rapid
SO far as i read, the reason for the 11 year cycle is not fully understood, which by the way if anyone has any link to info, post them i would love to read more. Anyways, what my impression seems to be is that major "cataclysmic" events in the sun cause major magnetic disturbances and changes. i.e solar flares and CMEs. The cause of this, my hypothesis, is a buildup of internal energy in the sun that gets released at the solar maximum causing the pole reversal and this loss of energy causes the sun to back into a buildup phase, the solar minimum and back to max, hence the cycle. Once again, only my little hypothesis on the subject.

I would compare it to a workout, you sprint for a while then rest to recoup your energy and so on and so forth.

as for the magnetar, i have no info on me about the reversal of a magnetic neutron star's poles.
 
Last edited:
Mikeral said:
I still find the concept of "2012" rather humorous although it does coincide with the solar cycle. Without getting to far into an "end of the world" discussion it does seem that the year 2012 is going to be an interesting year for solar activity.


SO far as i read, the reason for the 11 year cycle is not fully understood, which by the way if anyone has any link to info, post them i would love to read more. Anyways, what my impression seems to be is that major "cataclysmic" events in the sun cause major magnetic disturbances and changes. i.e solar flares and CMEs. The cause of this, my hypothesis, is a buildup of internal energy in the sun that gets released at the solar maximum causing the pole reversal and this loss of energy causes the sun to back into a buildup phase, the solar minimum and back to max, hence the cycle. Once again, only my little hypothesis on the subject.

I would compare it to a workout, you sprint for a while then rest to recoup your energy and so on and so forth.

as for the magnetar, i have no info on me about the reversal of a magnetic neutron star's poles.

Interesting, what you're saying about the sun sounds like magnetic reconnection. I'll have to read a bit on this, thank you.
 
I would imagine that the sun could flip more easily as it is made up of primarily hydrogen unlike the Earth's core of iron. As to do with 2012, the suns 11 year cycle is directly related to president obama's alien affiliation and our metamorphosis into the new age.
 
shortlk said:
I would imagine that the sun could flip more easily as it is made up of primarily hydrogen unlike the Earth's core of iron. As to do with 2012, the suns 11 year cycle is directly related to president obama's alien affiliation and our metamorphosis into the new age.

:smile: Good one.
 
Back
Top