Opasne aktivnosti na Suncu


Opasne aktivnosti na Suncu

  • Pridružio: 18 Dec 2003
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Sa Sunca su u petak krenule 5 velikih "raketa" ka Zemlji, koje mogu da izazovu probleme sa komunikacijom vec sledece nedelje...

Solar flare affects communications, disruptions possible

Thursday, September 8, 2005 Posted: 1136 GMT (1936 HKT)

The solar flare is fourth largest in the last 15 years, a solar forecaster said.
• NOAA Space Environment Center

WASHINGTON (AP) -- A large solar flare was reported Wednesday and forecasters warned of potential electrical and communications disruptions.

The flare was reported by the National Oceanic and Atmospheric Administration's Space Environment Center in Boulder, Colorado.

Significant solar eruptions are possible in the coming days and there could be disruptions in spacecraft operations, electric power systems, high frequency communications and low-frequency navigation systems, the agency said.

"This flare, the fourth largest in the last 15 years, erupted just as the ... sunspot cluster was rotating onto the visible disk of the sun," said Larry Combs, solar forecaster at the center.

The flare has affected some high-frequency communications on the sunlit side of Earth, NOAA reported.

Sun Unleashes 5 Major Flares, Earth May Soon Get Pounded

Robert Roy Britt
Senior Science Writer
Sat Sep 10, 9:00 AM ET

An ongoing series of major solar flares, including one late Friday, could disrupt communications on Earth and generate colorful sky shows for people at high northern latitudes over the weekend.

Even more serious effects are possible next week.

The spate of activity from the Sun is being generated by a large sunspot named 798. Sunspots are cooler and darker regions of pent-up magnetic activity. When they unleash their energy, it's a bit like the top coming off a shaken champagne bottle.

Solar flares send radiation to Earth in about 8 minutes. Hours later, clouds of charged particles can engulf the planet. If the magnetic field of a storm is oriented opposite to our planet's protective magnetic field, gaps are created and radiation leaks to the planet's surface, potentially threatening astronauts aboard the
International Space Station, sometimes shorting out satellites, and even causing terrestrial power grids to trip.

Solar activity is at "very high levels," according to NOAA's Space Environment Center (SEC).

There have been five major flares in recent days, including a tremendous X-17 eruption Wednesday. The most recent event Friday evening was an X-6. Even an X-1 can cause severe disruptions.

The largest flare in modern times was recorded in November 2003 and was estimated to be an X-40. It, too, was on the limb of the Sun and so its full impact was not felt on Earth. That flare was part of an unprecedented series of 10 major flares within two weeks.

Each storm is different, and often solar activity goes unnoticed on Earth, depending on whether a storm hits us square or makes a glancing blow and what the magnetic orientation is.

If enough storms erupt, the odds go up that there will be effects here.

There is a 75 percent chance of more X-class flares through Monday, the SEC says.

The sunspot is just rotating into view, so its energy has been directed sideways and not directly at Earth. In coming days, if more major flares erupt, they'll head right at us and radio blackouts, cell phone dropouts and other communications disruptions are more likely, scientists said.

On Friday, a space radiation storm was captured in an image from the SOHO spacecraft, which monitors the Sun.

The Sun is currently at a low point in its 11-year cycle of activity. While sunspots and flares are less common now, astronomers say they can pack plenty of punch when they do occur.

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  • gamzzy 
  • Legendarni građanin
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Da li to znači da će biti toplije?

  • Source  Male
  • Legendarni građanin
  • Pridružio: 10 Jan 2005
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Ne, ja mislim da ce to uticati samo na telekomunikacije.
Ali opet, to je samo moje mišljenje.

  • Piksi  Male
  • Elitni građanin
  • Pridružio: 13 Nov 2003
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Pa mora bre da bude toplije...
Hmmm...moze li to da znaci da necemo ici u skolu !? Mr. Green

  • Pridružio: 29 Avg 2005
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Vide cemo za koji mesec...

  • Pridružio: 18 Dec 2003
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Ne znaci da ce se temperatura menjati, nego ce uticati na prenose u telekomunikacijama, izmedju ostalog... Mada, uvek ima hipohondara koji ce da tripuju da se zbog toga lose osecaju...

  • SSpin 
  • Saradnik foruma
  • Pridružio: 09 Dec 2004
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Ne nece biti toplije, mislim bar se nije desavalo prosli put kad se desilo.Osim smetnji u svim vrstama telekomunikacija, takodje, posledice ovoga se mogu videti po zdravstvenom stanju ljudi.Naime, neki ljudi ( srcani bolesnici, i oni koji boluju od astme ) tih dana kada "rakete " stignu do na, imaju problema, vrtoglavica, ucestala kijavica itd.

  • Pridružio: 18 Dec 2003
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SSpin ::posledice ovoga se mogu videti po zdravstvenom stanju ljudi.

Mislim da je ipak u pitanju hipohondrija Wink

  • Pridružio: 31 Jul 2005
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Leggy ::SSpin ::posledice ovoga se mogu videti po zdravstvenom stanju ljudi.

Mislim da je ipak u pitanju hipohondrija Wink

I ja tako mislim kako je moguce da taj dogadjaj moze uticati na astmaticare. Ali trp je trip Wink Wink

  • Pridružio: 10 Feb 2005
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Pa i jeste hipohondrija(ali tiljudi i te kako osecaju promene u magnetnom polju ljudi),a i videlei ste sta su eksplozije prouzrokovale "Katrin").

Dopuna: 13 Sep 2005 11:18

A da nemojte se raspravljati po tom pitanju,Katrina je nastala u trenutku najvece eksplozije na Suncu.

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