Friday, February 12, 2016

Solar cycle 24 activity continues to be lowest in nearly 200 years

by Anthony Watts

Ir has been a couple of months since WUWT has checked in on the progress of solar cycle 24. Right now, the sun is in “cue ball” mode, with no large visible sunspots as seen above the most recent Solar Dynamics Observatory (SDO) photo.

Since there is a new analysis out at Pierre Gosselin’s website by Frank Bosse and Prof. Fritz Vahrenholt, I thought it would be a good time to do an update. They write:
[The sun was] rather quiet in January. The determined solar sunspot number (SSN) was 56.6, which is 71% of the mean this far into the period, calculated using the 23 previously measured solar cycles.
Additional story and graph at: