After 50 “spotless” or “blank” days so far in 2020 (or 72%), a new sunspot is emerging in the sun’s southern hemisphere, and it appears to belong to new Solar Cycle 25. Numbered “AR2758,” the sunspot is clearly visible in the magnetic map of the sun’s surface from NASA’s Solar Dynamics Observatory (see above & below).
How do we know this sunspot belongs to Solar Cycle 25?–asks Dr Tony Phillips of spaceweather.com.
Well, its magnetic polarity tells us so. Southern sunspots from old Solar Cycle 24 have a -/+ polarity, whereas this sunspot is the opposite; it has a +/- polarity. According to Hale’s Law, sunspots switch polarities from one solar cycle to the next — AR2744, therefore, is a member of Solar Cycle 25.
AR2758 continues a trend of increasing Solar Cycle 25 activity.
So far this year, there have been 4 numbered sunspots (including AR2758). Three of them (75%) have been from Solar Cycle 25. This compares to only 17% in 2019 and 0% in 2018.
Solar Cycle 25 is still weak, but it is coming…
SHORTWAVE SOLAR RADIO BURSTS
Also from spaceweather.com comes the news that sunspot AR2758 has produced one of the first solar radio bursts of Solar Cycle 25.
“I was surprised to see distinct solar radio bursts on my spectrograph this morning,” reports Thomas Ashcraft.
Click below to play the slow-rolling roar of static that emerged from the loudspeakers of Ashcraft’s amateur radio telescope in New Mexico:
These radio sounds are caused by beams of electrons–in this case, accelerated by unrest in the sunspot’s fast-changing magnetic canopy, writes Dr Phillips. As the electrons slice through the sun’s atmosphere, they generate a ripple of plasma waves and radio emissions detectable on Earth 93 million miles away.
Astronomers classify solar radio bursts into five types; Ashcraft’s recording captured a mixture of Type III and Type V. “Even in the height of solar maximum, this would be considered a strong solar burst,” says Ashcraft, who has been listening to his solar radio many years. “I am hoping for more!”
Our universe is electromagnetic, and earth’s magnetosphere is waning -fast- in line with historically low solar activity and an ongoing magnetic excursion/reversal — ‘space weather’ events that would have ordinarily passed by unnoticed are having an increasingly-bigger impact here on the ground.
Our modern grid-dependent civilization is entering uncertain times.
Extra: There is also growing evidence that solar radio bursts can also disorient the navigation of grey whales, causing them to strand on beaches. According to the radical-pair hypothesis of magnetoreception, shortwave bursts such as the one Ashcraft recorded may be especially effective at sending them off course.
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Grand Solar Minimum + Pole Shift