A Cool Solar Core?
Date: 24 April 1998
Satellite: SOHO
Depicts: Solar Interior
Copyright: See below
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Concentric layers in a cutaway image show oddities in the speed of sound
in the deep interior of the Sun, as gauged by two instruments on the
SOHO spacecraft. MDI/SOI measures vertical motions due to sound waves
reverberating through the Sun, at a million points on the visible surface.
VIRGO detects the solar oscillations by rhythmic variations in the Sun's
brightness.
Last Update: 1 September 2019