After days of suspenseful quiet, huge sunspot AR2665 finally erupted on July 14th (0209 UT), producing a powerful M2-class solar flare. Continue reading
This article was posted a few years ago, but it might explain where have all the DX’ers gone. My thanks to VE7KWK for passing this along.
Bruce Dorminey, writing on Forbes, says that astronomers now confirm that the Sun’s magnetic dynamo is likely to eventually disappear causing our star to lose its 11 year magnetic cycle
In fact, a billion years from now, they say, interplanetary spaceflight could become even more treacherous, since the Sun’s protective magnetic heliosphere would weaken or even disappear, leaving our solar system unshielded from incoming cosmic rays.
In a paper submitted to the journal Solar Physics, co-author Travis Metcalfe confirms that the Sun, a yellow dwarf (G-spectral type) star is indeed making a long term transition in its magnetic activity cycle.
Over the next one to two billion years, we have confirmed that the Sun’s magnetic cycle period will get longer before disappearing entirely.
thanks to Southgate ARN
The sun has looked remarkably blank lately, with few dark cores interrupting the featureless solar disk. This is a sign that Solar Minimum is coming. Continue reading
On November 5th, a magnetic filament on the sun became unstable and erupted.
The blast opened a fiery canyon in the sun’s atmosphere and hurled a CME toward Earth.
According to NOAA models, the plasma cloud could strike Earth’s magnetic field on November 8th, triggering G1-class geomagnetic storms and auroras around the poles.
Visit http://spaceweather.com for updates and more information or
for more info.
A large coronal hole is turning toward Earth, and it is spewing a stream of high-speed solar wind into space.
NOAA forecasters expect the stream to reach our planet on Oct. 25-26 with a 35% chance of geomagnetic storms when it arrives.
Storm levels could reach category G2, which means the glow of auroras might be visible not only around the Arctic Circle but also in northern-tier US states such as Minnesota and Michigan.
Visit Spaceweather.com for more information
NOAA forecasters say there is a 55% chance of G1-class geomagnetic storms on Aug. 8th when a solar wind stream is expected to hit Earth’s magnetic field. High-latitude sky watchers should be alert for auroras. Check spaceweather.com for more details.
NOAA forecasters estimate a 65% chance of geomagnetic storms on Aug. 2nd when a CME is expected to strike Earth’s magnetic field.
The sun fired off its strongest solar flare of 2016 during an active weekend that saw three eruptions from the star’s surface. Continue reading
Something interesting is happening on the sun.
On Friday, June 3rd, the sunspot number dropped to 0, and the solar disk is still blank this weekend.
This is a sign that the sun is slowly shifting into a new phase of the solar cycle.
Learn more about the transformation on Spaceweather.com.
I spotted this post on Southgate ARC.