The Wyoming Infrared Observatory (WIRO) is an astronomical observatory owned and operated by the University of Wyoming. It is located 40 kilometers (25 mi) southwest of Laramie, Wyoming (USA) on Jelm Mountain. It was founded in 1975, and observations began at the site in 1977. Recent research performed at WIRO includes searching for runaway stars, monitoring short-term variations in blazars, and monitoring massive binary stars.
The 2.3 m (91 in) WIRO telescope is a classical Cassegrain reflector optimized for infrared observing. The secondary mirror can be "wobbled" under computer control to allow for rapid sampling of adjacent areas of the sky.
Two instruments are available for use:
- WIRO-Prime, a 2048x2048 charge coupled device (CCD) imaging camera mounted at the prime focus.
- WIRO-Long Slit, a low resolution, high efficiency long slit spectrograph.