 Multi-Object Spectrometer

A Multi-Object Spectrometer (MOS) is an astronomical instrument designed to obtain spectra from multiple astronomical objects simultaneously. Instead of focusing on a single object (as with traditional spectrometers), a MOS can gather information from many different targets within a single observation. This capability is particularly valuable for large surveys and studies of distant galaxies, star clusters, and other celestial phenomena, as it allows for efficient data collection across a wide field of view.