northanger (northanger) wrote,

aye aye aye

geez willies, have to check sun position. i have a strong gemini sun in the midheaven and just learned (via several posts at the cabal) about the coronal mass ejections on 16-January. these are always so much fun. (((and it explains why i'm having such a HUGE SPAZZ ATTACK this winter solstice - rotflmao)))

looked like sunspot #720 hit earth-side on 11-January (almost invisible - Sunspot Total: 40), and by 12-January was "blossoming into a giant at least 4 times wider than Earth: Solar activity could soar if this active region continues its rapid growth." Sunspot #720 5 times larger than earth the following day.


14-January, European Space Agency's Huygens probe lands on Saturn's moon Titan; "Before our very eyes, sunspot 720 has blossomed from an almost invisible speck to a giant seven times wider than Earth".

15-January, Only a few days ago sunspot 720 was a barely-visible speck. Now it's a behemoth almost as wide as the planet Jupiter.

16-January, AURORA ALERT: Two coronal mass ejections (movies: #1, #2) are heading toward Earth and they could spark strong auroras when they arrive on January 16th and 17th. These clouds were blasted into space by M8- and X2-class explosions above giant sunspot 720 on Jan. 15th. IMAGE: amazing photo of sunspot #720 erupting.

17-January, AURORA ALERT: If it's dark where you live, look outside. A strong geomagnetic storm is in progress after one (and possibly two) coronal mass ejections hit Earth's magnetic field this morning. Bright auroras have been sighted in Alaska and Canada. Meanwhile, giant sunspot 720 has unleashed another big solar flare. The X3-class explosion peaked at 0950 GMT (4:50 am EST) on Jan. 17th and hurled a CME in our direction. The incoming CME will hit Earth's magnetic field on Jan. 18th or 19th, possibly energizing another geomagnetic storm. [image of sunspot #720]

Scientists classify solar flares according to their x-ray brightness in the wavelength range 1 to 8 Angstroms. There are 3 categories: X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms. M-class flares are medium-sized; they generally cause brief radio blackouts that affect Earth's polar regions. Minor radiation storms sometimes follow an M-class flare. Compared to X- and M-class events, C-class flares are small with few noticeable consequences here on Earth. [source]

18-January, AURORA ALERT: A coronal mass ejection (CME) is heading for Earth and extreme geomagnetic storms are possible when it arrives on Jan. 18th or 19th. Sky watchers everywhere, be alert for auroras! Giant sunspot 720 poses a continued threat for X-class flares. Stay tuned for more solar activity. Sunspot Total: 107.

[what is a solar flare?]
[space radiation storms]
[record-setting solar flares]
[solar-geophysical activity]
[advisory bulletins ]
[solar activity]


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