The Global Oscillation Network Group (GONG) is an international, community-based project to conduct a detailed study of solar internal structure and dynamics using helioseismology. In order to exploit this technique, GONG has developed a six-station network of extremely sensitive and stable velocity imagers located around the Earth to obtain nearly continuous observations of the Sun's "five-minute" oscillations, or pulsations.
During 2001, the original 256x256 pixel cameras were upgraded with the new `GONG+' 1024x1024 pixel detectors, which give data suitable for `local helioseismology' and also provide high-cadence magnetic images.
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Selected Images from GONG and GONG+ |
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MPEG Movies from GONG and GONG+ |