Solar Slump: The Sun has been blank for two weeks straight

Watts Up With That?

Over the weekend, we reviewed the state of the solar data for March 2017. Now, there’s a two week straight lack of sunspots, the longest stretch since 2010.

A blank look to the sun on Monday, March 20, and it has now been blank for two weeks straight; image courtesy NASA/GSFC

Overview

The sun is currently blank with no visible sunspots and this is the 14th straight day with a blank look which is the longest such stretch since April 2010 according to spaceweather.com. Historically weak solar cycle 24 continues to transition away from its solar maximum phase and towards the next solar minimum. In April 2010 – the last time there was a two week stretch with no visible sunspots –  the sun was emerging from the last solar minimum which was historically long and deep.  There have already been 26 spotless days in 2017 (34% of…

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