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Active region NOAA AR 8194
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Active region NOAA AR 8194

February 28, 2005
Active region NOAA AR 8194

This picture of the active region NOAA AR 8194 shows seismic images just before (left frame) and during (center) its passage across the far-side solar meridian, on 27 and 28 March 1998, respectively. The right frame shows an NSO/Kitt Peak magnetogram of AR 8194 ten days later, when the region has passed onto the visible disk of the Sun.


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