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AURORA BOREALIS: Earth's magnetic field is mostly quiet. Nevertheless, some bright auroras were caught swirling around the Arctic Circle on Jan. 28th. Military satellites photographed the lights from above, while sky watchers in Canada saw them from ground level. An even bigger display is expected on Feb. 3-4 when an incoming solar wind stream reaches Earth.
DOUBLE ERUPTION: Jan. 28th began with not one but two major eruptions on the sun. Separated by more than a million kilometers, the two blasts occurred almost simultaneously on opposite corners of the solar disk. Click on the image to view a movie recorded by NASA's Solar Dynamics Observatory:
A doughnut-shaped coronal hole is emerging over the eastern limb. Credit: SDO/AIA.
Sunspots 1150 and 1151 pose little threat for strong flares. Credit: SDO/HMI
BEHEMOTH SUNSPOT 1158: Sunspot 1158 is growing rapidly (48 hour movie) and crackling with C-class solar flares. The active region is now more than 100,000 km wide with at least a dozen Earth-sized dark cores scattered beneath its unstable magnetic canopy. Earth-directed eruptions are likely in the hours ahead.
BEHEMOTH SUNSPOT 1158: Sunspot 1158 is growing rapidly and crackling with C-class solar flares. The active region is now more than 100,000 km wide with at least a dozen Earth-sized dark cores scattered beneath its unstable magnetic canopy. Earth-directed eruptions are likely in the hours ahead.
Originally posted by rbkruspe
Wonder when spaceweather will catch up with the rest of us.. they are quite slow.
SOLAR FLARE: Sunspot 1158 has just unleashed the strongest solar flare of the year, an M6.6-category blast @ 1738 UT on Feb. 13th. The eruption appears to have launched a coronal mass ejection (CME) toward Earth. It also produced a loud blast of radio emissions heard in shortwave receivers around the dayside of our planet. Stay tuned for updates!