Chatroom
 

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Bad Astronomy and Universe Today Forum > Science and Space > Space/Astronomy Questions and Answers
Register FAQ Members List Calendar Mark Forums Read

   

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 24-October-2007, 09:49 PM
redmadman3000 redmadman3000 is offline
Junior Member
 
Join Date: Dec 2004
Location: New York, NY
Posts: 18
Default Quick question about the sun.

NASA predicts that the Sun will reverse its own magnetic poles during 2012 as result of reaching the end of the current 11-year sunspot cycle.

so... what's that going to do exactly?

this is mostly to quiet my archiologist freind who believes that the reversal will either affect the planet or redirect 433 Eros somehow.

bah, damn the Mayans and their excellent calculations for making tons of people worry about some coming end of mankind.
__________________
wisdom is not given, it is earned
Reply With Quote
  #2 (permalink)  
Old 24-October-2007, 09:59 PM
korjik korjik is offline
Order of Kilopi
 
Join Date: Sep 2004
Posts: 3,221
Default

The sun has been reversing its magnetic poles about every eleven years for as long as we have been able to measure it.

Have you ever noticed an effect?
Reply With Quote
  #3 (permalink)  
Old 24-October-2007, 10:11 PM
Van Rijn's Avatar
Van Rijn Van Rijn is offline
Order of Kilopi
 
Join Date: Mar 2004
Posts: 12,138
Default

Quote:
Originally Posted by redmadman3000 View Post
NASA predicts that the Sun will reverse its own magnetic poles during 2012 as result of reaching the end of the current 11-year sunspot cycle.

so... what's that going to do exactly?
We'll see some activity on the sun. Astronomers will get some interesting data. That's about it. Here's a page on the last time it happened:

http://science.nasa.gov/headlines/y2001/ast15feb_1.htm

There's no way it's going to move asteroids or cause an apocalypse.
__________________
I say there is an invisible elf in my backyard. How do you prove that I am wrong?

Disclaimer: Avatar is not an official NASA image and does not imply any specific interplanetary or interstellar capability.

The Leif Ericson Cruiser
Reply With Quote
  #4 (permalink)  
Old 24-October-2007, 11:19 PM
Swift's Avatar
Swift Swift is offline
Moderator
 
Join Date: Sep 2003
Location: The beautiful north coast (Ohio)
Posts: 17,691
Default

And while the Mayans were great naked-eye astronomers, there is no evidence that they knew anything about sunspots or the solar magnetic field, and there is no evidence that they believed the turn-over in their calendar would lead to anything bad (it is not an end, anymore than 1999/2000 was the "end" of our calender).
__________________
At night the stars put on a show for free (Carole King)

One Earth, One Sky - IYA 2009
All moderation in purple
Reply With Quote
  #5 (permalink)  
Old 26-October-2007, 02:04 AM
George's Avatar
George George is offline
Order of Kilopi
 
Join Date: Sep 2003
Location: San Antonio, Tx.
Posts: 8,384
Default

The Sun's magnetic polarity is more superficial than one might think. In March of 2000, the north and south pole regions had the same polarity; the south pole magnetic polarity had migrated toward the equator. By May, it had returned. Then in 2001, the poles reversed polarity.

But it is still a 11 year cycle, apparently.
__________________
Lighten up! This is a stellar board! Author: duh.

"The mean of five measures each of which is not worth a dang (sinc), has a maximum value of only five dangs (sinc)". Heber Curtis

"(sinc)" - spelling is not correct (in its orginal form) :)
Reply With Quote
  #6 (permalink)  
Old 26-October-2007, 02:41 AM
01101001's Avatar
01101001 01101001 is offline
Order of Kilopi
 
Join Date: Mar 2004
Posts: 13,363
Default

Quote:
Originally Posted by redmadman3000 View Post
[...] 2012 [...]
Interesting year.

2003 no, 2012 si
2012
Pole shift / Planetary alignment 2012?
2012 alignment question
about the Mayan 2012 item
2012 Debunking?
Possible asteroid impact in 2012?
2012 asteroid?
We don't have to worry about 2012!
More on 2012 from India Daily
2012 Completion of conspiracy?
Here's what's REALLY going to happen in 2012...
crop circles, Planet X and 2012
Planet X, crop circles and 2012 cataclysma
According to the Mayans, what will happen on 23rd Dec. 2012?
More 2012 Nonsense
NEO 2012?
Dangerous NEO in 2012?
Christmas 2012
2012 mayan calender end of world
Regarding the supposed polar shift/new ice age in 2012
New 2012 threat?
2012 look at this thing on the sun
Russian Expert Predicts Global Cooling from 2012
Pole shift idea origins
Dec 20 2012
2012 Stuff
Horizon Project-New End of World Scare?
Date: December 21st 2012
Earth passing thru Galactic center in 2012 - didn't that already happen?
2012: What do you think well happen (if anything)
So what will we see in 2012?
Galactic Tsunami?
Plane of the ecliptic of the galaxy?
Earth's Magnetic Field & 2012
2012?
Any truth to this?
How can the sun be aligned with Galactic centre?
the whole 2012 poles flip nonsense
Planet X Official Advertisement
What year are we in
Quick question about the sun
__________________
0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 0 1 1 0 1 0 0 1 0 1 1 0 1 0 0 1 1 0 0 1 0 1 1 0 ...
Reply With Quote
  #7 (permalink)  
Old 26-October-2007, 02:56 AM
George's Avatar
George George is offline
Order of Kilopi
 
Join Date: Sep 2003
Location: San Antonio, Tx.
Posts: 8,384
Default

Is there a term for this neospam questioning of 2012?
__________________
Lighten up! This is a stellar board! Author: duh.

"The mean of five measures each of which is not worth a dang (sinc), has a maximum value of only five dangs (sinc)". Heber Curtis

"(sinc)" - spelling is not correct (in its orginal form) :)
Reply With Quote
  #8 (permalink)  
Old 26-October-2007, 04:09 AM
Swift's Avatar
Swift Swift is offline
Moderator
 
Join Date: Sep 2003
Location: The beautiful north coast (Ohio)
Posts: 17,691
Default

Quote:
Originally Posted by George View Post
Is there a term for this neospam questioning of 2012?
It's the end of the world.

@ 01101001
You might have to change your user ID to 11111011100, the way you keep that list up.

Seriously, we might as well get used to it, I suspect it will only get worse over the next 5 years (think about the build-up to Planet X).
__________________
At night the stars put on a show for free (Carole King)

One Earth, One Sky - IYA 2009
All moderation in purple
Reply With Quote
  #9 (permalink)  
Old 26-October-2007, 08:12 PM
George's Avatar
George George is offline
Order of Kilopi
 
Join Date: Sep 2003
Location: San Antonio, Tx.
Posts: 8,384
Default

Quote:
Originally Posted by Swift View Post
It's the end of the world.
They're Western Armagedonites, then?

Quote:
Seriously, we might as well get used to it, I suspect it will only get worse over the next 5 years (think about the build-up to Planet X).
The tension with the former Planet IX was bad enough!
__________________
Lighten up! This is a stellar board! Author: duh.

"The mean of five measures each of which is not worth a dang (sinc), has a maximum value of only five dangs (sinc)". Heber Curtis

"(sinc)" - spelling is not correct (in its orginal form) :)
Reply With Quote
  #10 (permalink)  
Old 26-October-2007, 08:14 PM
Noclevername's Avatar
Noclevername Noclevername is offline
Order of Kilopi
 
Join Date: Apr 2007
Posts: 11,082
Default

Quote:
Originally Posted by George View Post
The tension with the former Planet IX was bad enough!
So that's why Pluto went into retirement!
__________________
"If this were play'd upon a stage now, I could condemn it as an improbable fiction."
Shakespeare, Twelfth Night
"The Mayan symbol for "book" looks a lot like a triple hamburger, but I've never seen them claiming it as proof the Mayans had Big Macs." - KaiYeves
"Distance doesn’t matter much in space, where if you just start a thing off with the right kind of shove, sooner or later it will get where you want it to go." -Frederik Pohl, Mining the Oort
Reply With Quote
  #11 (permalink)  
Old 27-October-2007, 01:07 AM
Van Rijn's Avatar
Van Rijn Van Rijn is offline
Order of Kilopi
 
Join Date: Mar 2004
Posts: 12,138
Default

Quote:
Originally Posted by Swift View Post
It's the end of the world.

@ 01101001
You might have to change your user ID to 11111011100, the way you keep that list up.

Seriously, we might as well get used to it, I suspect it will only get worse over the next 5 years (think about the build-up to Planet X).
A quick, rough count from 01101001's list shows about 40 threads from 2003 on, with 15 threads so far in 2007. A low guess would be that there will be at least 100 threads through 2012, but I wouldn't be surprised at 200.
__________________
I say there is an invisible elf in my backyard. How do you prove that I am wrong?

Disclaimer: Avatar is not an official NASA image and does not imply any specific interplanetary or interstellar capability.

The Leif Ericson Cruiser
Reply With Quote
  #12 (permalink)  
Old 27-October-2007, 02:19 AM
KaiYeves's Avatar
KaiYeves KaiYeves is offline
Order of Kilopi
 
Join Date: Sep 2007
Location: Currently on assignment on planet shown in avatar photo
Posts: 9,951
Default

Quote:
bah, curse the Mayans and their excellent calculations for making tons of people worry about some coming end of mankind.
Hey, don't blame the Maya! Gibson's last movie trashed them enough. One king said his coronation day would still be celebrated in our year 4000 and something. No, blame the archeo-woos.
__________________
I want to go back to the moon.
I don't care which rocket you use, whichever one you pick, I'll like it, I swear.

"If you think the LHC will create black holes, you might as well believe Hobbits are at the bottom of your garden."- Dr. Mike Inglis
Rovers forever! - ToSeek
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Similar Threads
Thread Thread Starter Forum Replies Last Post
Test your intelligence Titana Off-Topic Babbling 184 20-January-2007 09:23 PM
Question about height of sun hippypaul Astronomy 6 16-May-2005 05:51 AM
Something hits the sun (question + speed calculation) Revolver Astronomy 23 09-April-2005 12:24 AM
Wormhole question; sun question BigJim Astronomy 1 10-August-2004 09:20 AM
Planet X and Titus-Bode law resenmut Against the Mainstream 41 22-January-2004 09:28 PM


All times are GMT. The time now is 01:43 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.0.0
©  2006 Bad Astronomy and Universe Today