Solar effect on Cells
@All
"The sunspot has quieted down since unleashing dual X-flares on Sept. 22nd and 24th. Nevertheless, NOAA forecasters estimate a 40% chance of more X-flares during the next 24 hours. Any such eruptions would be Earth-directed as the sunspot crosses the center of the solar disk."
Solar flare alerts: text, voice.
BIG SUNSPOT: The source of all this solar and geomagnetic activity is sunspot AR1302. Measuring more than 150,000 km from end to end, the sprawling active region is visible even without a solar telescope. Fabiano Belisário Diniz saw it plainly in last night's sunset from Curitiba, Brazil:
"In this article we briefly explain some of the ideas behind the association of the aurora with geomagnetic activity and a bit about how the ‘K-index’ or ‘K-factor’ works. The aurora is understood to be caused by the interaction of high energy particles (usually electrons) with neutral atoms in the earth's upper atmosphere. These high energy particles can ‘excite’ (by collisions) valence electrons that are bound to the neutral atom. The ‘excited’ electron can then ‘de-excite’ and return back to its initial, lower energy state, but in the process it releases a photon (a light particle). The combined effect of many photons being released from many atoms results in the aurora display that you see. "
Planetary K-index:Currently 7-8
Now: Kp= 4 unsettled
24-hr max: Kp= 8 severe
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
Mike
@All
"The sunspot has quieted down since unleashing dual X-flares on Sept. 22nd and 24th. Nevertheless, NOAA forecasters estimate a 40% chance of more X-flares during the next 24 hours. Any such eruptions would be Earth-directed as the sunspot crosses the center of the solar disk."
Solar flare alerts: text, voice.
BIG SUNSPOT: The source of all this solar and geomagnetic activity is sunspot AR1302. Measuring more than 150,000 km from end to end, the sprawling active region is visible even without a solar telescope. Fabiano Belisário Diniz saw it plainly in last night's sunset from Curitiba, Brazil:
"In this article we briefly explain some of the ideas behind the association of the aurora with geomagnetic activity and a bit about how the ‘K-index’ or ‘K-factor’ works. The aurora is understood to be caused by the interaction of high energy particles (usually electrons) with neutral atoms in the earth's upper atmosphere. These high energy particles can ‘excite’ (by collisions) valence electrons that are bound to the neutral atom. The ‘excited’ electron can then ‘de-excite’ and return back to its initial, lower energy state, but in the process it releases a photon (a light particle). The combined effect of many photons being released from many atoms results in the aurora display that you see. "
Planetary K-index:Currently 7-8
Now: Kp= 4 unsettled
24-hr max: Kp= 8 severe
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
Mike
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