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Appears to be map of sunspot activity Picture

Appears to be map of sunspot activity

Appears to be map of sunspot activity. Perhaps related to geomagnetic work.

Photo Category: Coast and Geodetic Survey - Geophysics Seismology
Photo Date: 1966 September 22

Categories
Sun
Author: NOAA

License: Public Domain Mark 1.0 (Public domain)
551 x 640 25.04 KB
1102 x 1280 92.82 KB
1653 x 1920 198.92 KB
2472 x 2872 381.40 KB
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Added On
16th October 2015
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