= Fine Guidance Sensor and Near Infrared Imager and Slitless Spectrograph
{wiki=Fine_Guidance_Sensor_and_Near_Infrared_Imager_and_Slitless_Spectrograph}
The Fine Guidance Sensor (FGS) and Near Infrared Imager and Slitless Spectrograph (NIRISS) are scientific instruments used in astrophysical observations, particularly aboard the James Webb Space Telescope (JWST). \#\#\# Fine Guidance Sensor (FGS) The Fine Guidance Sensor is designed primarily to provide precision pointing and stabilization for the JWST.
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