Global Oscillations Network Group


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Global Oscillations Network Group

(GONG) A program for the continuous monitoring of solar oscillations (see helioseismology), coordinated by the US National Solar Observatory. Six observatories spaced at approximately 60° intervals of longitude around the world form the observational network.
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Using data from the Global Oscillations Network Group (GONG) and the Michelson Doppler Imager (MDI), scientists from NorthWest Research Associates (NWRA) and the Max-Planck-Institut fur Sonnensystemforschung (MPS) have found detectable signs of magnetic fields before they emerge at the solar surface to form sunspots.
using a prototype of a new filter and telescope system called the Global Oscillations Network Group (GONG).

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