Saturday, January 9, 2010

Solar Activity at Historical Ebb

Current Solar Activity as measured by the Ap Index and Geomagnetic Activity are at the lowest levels over the past 170+ years:




As of this post, the Ap Index is 1. For the current value, see the solar-terrestrial data widget at right, listed as A-index.

UPDATE: Ap Index is zero 1-10-09!

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