WEAVE

WEAVE (for WHT Enhanced Area Velocity Explorer) is a wide-field multi-object spectrograph installed on the William Herschel Telescope (WHT) for surveys. It takes the spectrum of over 900 objects simultaneously across a two degree field of view. It offers various wavelength ranges between 370 and 1000 nm, and offers a spectral resolutions up to 20,000. My impression is most of its time is to be dedicated to one or more surveys for which it is designed, with a lesser amount for individual projects. WEAVE saw first light in October 2022, underwent commissioning into 2023, and began science observation in late 2023.