McDonald_Observatory-403.jpg IGRINS Instrument
The IGRINS instrument sits inside the dome of the Harlan J. Smith Telescope. IGRINS stands for Immersion Grating Infrared Spectrometer. The instrument is a collaboration between The University of Texas and the Korea Astronomy and Space Science Institute. Dr. Dan Jaffe, Chair of the University of Texas Astronomy Department, is the Principal Investigator. More information about IGRINS is available here. Credit: Ethan Tweedie Photography
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