X17 Solar Flare Sends 2B Tons of Plasma at Earth 473
Dr. Zowie writes "This morning a very large solar flare erupted from a
large sunspot group that is crossing the face of the Sun. The explosion sent over 2 billion tons of material hurtling across the solar system toward Earth. Movies from the SOHO spacecraft show the flare
in UV and the associated
coronal mass ejection in visible light as they happened, and the impact of high energy protons that the flare launched at about half the speed of light. NOAA's Space Environment Center shows that the Sun's X-ray brightness went up 100x during the flare. Expect more aurora and geomagnetic effects in the next day or two!"
So will I ... (Score:2)
Re:So will I ... (Score:4, Informative)
Re:So will I ... (Score:5, Informative)
Event #49 - 28 October 2003
Issued: 16:30 UTC, 28 October 2003
SOURCE EVENT
Class X17.2 Flare in Region 486 at 11:10 UTC on 28 October 2003
Type II: 1250 km/sec
Estimated LASCO-derived Plane of Sky Velocity: 2125 km/sec
ESTIMATED TIME OF ARRIVAL OF SHOCK AT EARTH
Estimated Impact Window: 00:00 UTC on 29 October to 21:00 UTC on 29 October
Preferred Predicted Impact Time: 08:00 UTC, 29 October 2003 (3 am EST on 29 October)
Estimated Shock Strength (0=Weakest, 9=Strongest): 9
Predicted Behavior of IMF at Shock Impact
At Shock Impact, the Interplanetary Magnetic Field is predicted to initially turn:
SOUTHWARD
IMPORTANT TIME OF ARRIVAL NOTICE FOR NORTH AMERICANS
The preferred time of arrival is ***TONIGHT***, TUESDAY NIGHT (before you go to bed that night) near or after 3 am Eastern Standard Time).
That's 2 am Central Standard Time on TONIGHT.
That's 1 am Mountain Standard Time on TONIGHT.
That's MIDNIGHT Pacific Standard Time on TONIGHT.
EXPECT RESIDUAL ACTIVITY (LESS INTENSE) TOMMORROW NIGHT (WEDNESDAY, 29 OCT) AS WELL !
EVENT #49 NOTES:
This is the most energetic Earthward-directed event of the solar cycle.
SEVERE to MAJOR geomagnetic storming is expected to abruptly commence following the arrival of the shock front from this flare.
This flare was associated with a Ground-Level Event. It was also associated with very high energy protons at greater than 100 MeV (which are still climbing, over 5 hours after the event began). A magnetic crochet was observed over the daylit sections of the ionosphere. An exceptionally intense shortwave fadeout and polar cap absorption event are in progress. There are reports this event was observed in white-light. Intense radio bursts were associated with this event across the spectrum. The type II shock velocity is not representative of the observed velocity of this CME. The observed velocity as determined by SOHO was 2125 km/sec.
This event has the potential to produce the strongest geomagnetic storm since 1989. Auroral activity could become visible into the deep low latitude regions. This one is worth driving a good long distance over to find clear skies. It has better potential to produce low-latitude aurora than almost any other event observed in the past decade. Keep in mind that it is also possible the disturbance may not be nearly as geoeffective as many would like. It all depends on the character of the magnetic fields imbedded within the coronal mass ejection. However, we believe it will either be very large, or only modestly large in terms of its capacity to produce disturbed geomagnetic and auroral activity. We do not expect this disturbance to be small.
These predictions may be based on preliminary data and may be revised without warning. The predictions should not be used as a definitive indication of CME impact times or strengths and may frequently be in error. The proprietary methods used to estimate shock impact times are under continual development. Caution is advised.
Re:So will I ... (Score:5, Funny)
Re:So will I ... (Score:2)
For those whose first response is "WTF?" (Score:5, Informative)
more [space.com]
This means WAR! (Score:4, Funny)
This unprovoked attack on the planet Earth cannot be allowed to go unpunished! I say we take a page from the Israelis and build an orbital wall that will prevent any further such incursions in the future!
Re:For those whose first response is "WTF?" (Score:2, Interesting)
Anyway, if you're going to be a passenger on a high-altitude airplane flight you may receive chest-x-ray-level dosages of radiation. Not typically considered harmful.
Follow the link for some easier to view pictures and a link to spaceweather.com where they have all kinds of information.
Extraterrestrial terrorists! (Score:2)
Re:For those whose first response is "WTF?" (Score:5, Informative)
Yes, that province was Quebec and we were in the dark for 2-3 days IIRC. A the time, the power company (Hydro Quebec) said "it's because of the sun" and everybody made fun of them.
I wonder if this was also due to the very long power lines (>1000 km) we have from the hydro plants to the cities... I heard they also make perfect antennas for sending 60 Hz waves into space.
Re:For those whose first response is "WTF?" (Score:2)
And just where to you "take cover" on a space station?
Re:For those whose first response is "WTF?" (Score:2)
Re:For those whose first response is "WTF?" (Score:2)
Or, as they'd say on 'All Things Scottish', FRICKIN' HUGE!
Xentax
Re:For those whose first response is "WTF?" (Score:5, Funny)
Well, obviously, you've never had a nose "flare" before. Very messy.
Helpdesk Excuse-of-the-Day (Score:5, Funny)
Re:Helpdesk Excuse-of-the-Day (Score:2)
Re:Helpdesk Excuse-of-the-Day (Score:5, Funny)
Well, thank goodness. (Score:3, Funny)
Tin foil hat! (Score:5, Funny)
Astronomy is fun (Score:5, Funny)
the fun of sitting still, being quiet, writing down numbers,
paying attention...[chuckles] Science has it all.
Simpsons quotes for all occations! (Score:2)
- Montgomery Burns
Now you know why. Stupid Sun.
Re:Simpsons quotes for all occations! (Score:4, Funny)
Great... (Score:5, Funny)
Re:Great... (Score:3, Funny)
Hey, you know if you didn't like my sig, you could have just told me.
hrmm.... (Score:3, Interesting)
xao
Re:hrmm.... (Score:2)
On the occupation of Iraq!
Idolator! (Score:2, Funny)
(Fortunately for you Ra is not paying attention, or he would certainly mod you down).
=========
Re:Idolator! (Score:3, Funny)
xao
A question about the Sun's behavior (Score:5, Interesting)
Re:A question about the Sun's behavior (Score:2, Interesting)
Re:A question about the Sun's behavior (Score:5, Insightful)
Let's see:
That's a start. Just because we're past the predicted peak of current cycle doesn't mean there won't be solar activity.
-Isaac
Re:A question about the Sun's behavior (Score:4, Informative)
Yes - it's not a large amount during a non-peak time.
It's a normal amount for this time period, the only difference is that the recent ones are actually being sent towards us, so they affect us more..
CME's are a pretty regular occurrence, and they do follow an 11-year cycle, but most of them never affect us, because we're not in the path of the flare. (Think about it - the earth occupies a pretty small percentage of real estate around the sun - so there's a pretty small chance that a CME will send stuff our way.)
The amount is normal for this time period, it's just that the recent ones are aimed at us.
Re:A question about the Sun's behavior (Score:2)
I'd love to hear this question on the Art Bell show. I'm sure somebody would come up with a creative, yet strangely plausible reason that humans cause this. "It's radio man, we started using radio and the sun is allergic to it."
Re:A question about the Sun's behavior (Score:2)
These strong solar flares are from global warming because evil Bush not signing the Kyoto accord.
Re:A question about the Sun's behavior (Score:2, Interesting)
Flares occur to relax the magnet field gradiant. This gradiant is correlated with sunspot size which, in turn, is correlated with sunspot number. Larger sunspots are correlated with solar max and are anti-correlated with solar min. But, just like earth weather throws a curveball, you can get atypic
Re:A question about the Sun's behavior (Score:3, Funny)
Re:A question about the Sun's behavior (Score:2)
So it's ok for the loonies in other threads to claim Bush is up to all kinds of things, but it's not ok, apparently, when it's someone making fun of them instead.
Oh well, my point is proven, regardless. =)
Braak out the RJ-45!!! (Score:5, Funny)
No 802.11b, 1 year!
Re:Braak out the RJ-45!!! (Score:2, Interesting)
Re:Braak out the RJ-45!!! (Score:3, Informative)
Suntan (Score:2)
Rus
next day or two? (Score:5, Interesting)
Re:next day or two? (Score:5, Informative)
Re:next day or two? (Score:2)
Re:next day or two? (Score:2)
how to prepare (Score:3, Insightful)
alternate plan:
Turn off your cellphone, place your hands behind your head, put your head between your knees, and kiss your data communications goodbye. For a little while. And don't forget to stare at the pretty Northern Lights tonight! (hopefully)
I don't want to get my brain fried... (Score:2, Funny)
I knew it... sooner or later those evil aliens would find a way to read my mind.
Way cool... (Score:5, Insightful)
Forget Iraq, the 2004 Election, the economy...
And people question our space exploration budget!!! Silly people!
Re:Way cool... (Score:2, Interesting)
Re:Way cool... (Score:2)
oh well, back to work
Re:Way cool... (Score:3, Insightful)
If it makes you feel like that reading about it, imagine what it must feel like to do it yourself. I observed some wonderful sunspots Sunday afternoon. The night before I observed several star clusters, a couple of nebulae, and, for good measure, spent some quality time with Mars. It clouded over before Saturn was high enough for good observation.
...laura
Aurora watching (Score:2)
Re:Way cool... (Score:3, Funny)
(runs off to Staples...)
Re:Way cool... (Score:2, Funny)
Yeah but it's missing all of the space sounds! What a ripoff! ;)
Knee-Jerk Response: (Score:3, Funny)
Re:Knee-Jerk Response: (Score:4, Funny)
The terrorists have already won. It is an X17 solar flare, it's coming our way and there's nothing we can do about it.
What W said when told of the solar flares... (Score:5, Funny)
slashdot become psychic? (Score:2)
For those wondering, the link is a
No Kyoto (Score:5, Funny)
Thank god we've got all that extra CO2 in the atmosphere to protect us!
Plasma by the ton? (Score:2)
Patent Payback (Score:2)
Check out the end of the CME mpg (Score:5, Interesting)
Re:Check out the end of the CME mpg (Score:2)
Check your servers.... (Score:5, Interesting)
Re:Check your servers.... (Score:5, Funny)
damn lamenss filter.
Is it just me? (Score:2)
Yah! (Score:2)
In other news today, California requested 3000 Intergalactic Firemen.....
Taco Bell strikes again (Score:5, Funny)
What me worry? (Score:2)
Am I the only one worried that this sounds like one big pile of something that could whack into Earth? Or is it just a bazillion tiny particles that add up to 2 billion tons?
Re:What me worry? (Score:2)
"It's coming right for us!" *WHOOSH* "Kick Ass!" (Score:5, Insightful)
Batten down those scintillation counters! Unhook the HF radios!
Re:"It's coming right for us!" *WHOOSH* "Kick Ass! (Score:5, Funny)
Flares effecting local radio and TV (Score:3, Informative)
The engineer at WBRC reported a rash of viewer calls in the past few days about reception problems including a call from a distant (100 miles) cable system with 4 separate headends, each exhibiting the same poor signal for minutes at a time then clears up.
Also, NOAA describes the geomagnetic affects on radio blackouts as "severe" in the last 24 hours . http://www.sec.noaa.gov/SWN/ [noaa.gov]
Are any of you having similar listener/viewer complaints?
New pet theory: (Score:2)
Interesting, non?
Re:New pet theory: (Score:2)
REPENT, FOR THE END IS NEAR!!!!!! (Score:2)
What? You mean they already hit us and nothing happened?
Never mind.
Another big solar flare in the past couple years (Score:2)
here [navy.mil]
Finally... (Score:3, Funny)
The last of these warnings... (Score:5, Informative)
There is a hearing on the situation on Thursday the 30th.
http://www.house.gov/science/press/108/108
X10 is exacting its revenge (Score:5, Funny)
(...and the followers of Mammon shall tremble.)
energy crisis my ass! (Score:2)
Effect on humas (Score:2)
Anyone else notice an elevated wackiness level?
And as usual... (Score:5, Funny)
Obligatory (Score:4, Informative)
Damn space exploration budget cuts... (Score:2)
Millions and Billions... (Score:2)
Quick Find Me A Hot Redhead!!! (Score:2)
Look at the comet hit the sun! (or evaporate ....) (Score:3, Interesting)
Pretty nifty! It states a comment should vaporize before impacting, but it is still kind of ironic!
I bet it was an alien spaceship or missile and its doomsday! :P
Re:X17 (Score:2)
Re:X17 (Score:5, Informative)
Ranking Day/Month/Year X-Ray Class
1 02/04/01 X20.0
1 16/08/89 X20.0
2 28/10/03 X17.2
3 06/03/89 X15.0
3 11/07/78 X15.0
4 15/04/01 X14.4
5 24/04/84 X13.0
5 19/10/89 X13.0
etc.. etc..
"
I would have suggested classifications go to 11 [spinaltap.com], but clearly they go much higher...
Re:X17 (Score:2)
1 02/04/01 X20.0
Did these guys sleep through Y2K? Is that 1901 or 2001?
There was a hint in the quoted documents title "Large Solar Flares Since 1976".
Re:X17 (Score:2)
Funny like that...when you read the data.
Re:Actually (Score:2)
Re:Actually (Score:3, Informative)
Sounds like Sun (the company, not the bright thing that lights up the Big Room) blowing smoke up your ass. There's a cache coherency bug on some 400 MHz UltraSPARC II processors with 8 meg ecache that causes panics. *Maybe* this
Re:The World Is going to end! (Score:2, Informative)
However, all the predictions currently are that this event has the potential of causing a K-inded 9 geomagnetic storm (G5). NOAA's classification of G5 effects is:
Power systems
Re:The World Is going to end! (Score:2)
But I think people are pretty blsae about power and communication grid issues, as long as they're resolvable once this blows over. I think people are jittery about "extinction level event" kinda stuff...
Nitpicking is cool, but (Score:2)
Re:SUN's stock price up (Score:2, Funny)
Re:While some might want to cast aspersions on... (Score:2)
Re:What about the ISS? (Score:2)