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Magnetic fields overlying sunspot 1087 became unstable and erupted yesterday. The explosion emitted a bright flash of UV light (a C3-class solar flare) and hurled a massive plume of hot plasma away from the sun.
NASA's Solar Dynamics Observatory (SDO) recorded the 1.5-hour time-lapse movie beginning at 1950 UT on July 9th. SDO has been busy since sunspot 1087 appeared yesterday, recording B- and C-class flares every few hours. So far none of the eruptions has been Earth-directed, but this could change in the days ahead as the active region turns to face our planet
Originally posted by this_is_who_we_are
It's 2:34AM Saturday morning Ann Abor time, and still no aliens.
[edit on 7/10/2010 by this_is_who_we_are]
Sunspot 1087 has a magnetic canopy that can only be described as magnificent. It's on full display in today's extreme ultraviolet image from the Solar Dynamics Observatory
This active region could swallow our planet ten times over and still have room to spare. Fortunately, we're 93 million miles away. We could still feel the effects of an eruption, however. The thicket of magnetic loops and filaments harbors energy for M-class solar flares. M-flares can heat and puff up Earth's upper atmosphere, causing satellites to experience extra drag as they orbit our planet; they can also cause waves of ionization to ripple around the planet, disrupting radio communications. There haven't been any big eruptions yet, but the magnificent magnetic field of sunspot 1087 has been restless, as shown in this time-lapse movie spanning four days.
NOAA forecasters estimate a 10% chance of M-flares during the next 24 hours. Readers with solar telescopes are encouraged to monitor developments.
Originally posted by Noobastronomer
Originally posted by rajaten
reply to post by Noobastronomer
Two hours ago the proton density of the solar wind jumped to 9.8 for a while. Plus solarcycle24.com reported active Xrays.
right now the proton density is 10.5 in spaceweather..