Tacometro de Fourier
GONG-T
Modified Michelson interferometer (Fourier Tachometer) providing high resolution solar images of intensity, radial velocity and magnetograms at Niquel NI 676.8 nm line. It is a node of the NSO (National Solar Observatory) project named GONG (Global Oscillations Network Group) which began observations in 1996 and with the other nodes located at Chile, California (USA), Hawaii, Australia and India.