” A SUNSPOT FROM THE NEXT SOLAR CYCLE: Getting tired of Solar Minimum? Good news: It won’t last forever. In fact, the next solar cycle made a brief appearance this week. On May 28th, a small sunspot materialized in the sun’s northern hemisphere, then, hours later, vanished again. The polarity of its magnetic field marked it as a possible member of Solar Cycle 25.
Northern sunspots from old Solar Cycle 24 have a +/- polarity. This ephemeral sunspot was the opposite: -/+. According to Hale’s Law, sunspots switch polarities from one solar cycle to the next. The unnumbered sunspot appears to be a herald of Solar Cycle 25.
Solar cycles always mix together at their boundaries. Indeed, ephemeral sunspots possibly belonging to Solar Cycle 25 have already been reported on Dec. 20, 2016, and April 8, 2018, and Nov. 17, 2018. Now we can add May 28, 2019, to list. The slow transition between Solar Cycle 24 and Solar Cycle 25 appears to be underway.”
Source:Spaceweather.com
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