Home > Data, Omniclimate, Science > How Is Solar Cycle 24 Doing?

How Is Solar Cycle 24 Doing?

Spotless Periods

Spotless Periods

This page about solar cycle 24 is in Italian but should be easy to understand. Here the rankings of cycle 24 so far, since 1849:

(a) current number of spotless days: 37 (17th longest ever, and counting)

(b) number of spotless periods longer than 20 days: 5 (5th)

(c) number of spotless days: 415 (9th)

Actually, the “spots” that have been claimed for around July 19, didn’t look like sunspots to me at all. Without them, the number of spotless days is 64, that is the third ever.

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