spectrograph
/ˈspɛktrəɡræf/
Definition
A scientific instrument used to break down light from astronomical objects into its component wavelengths to create a spectrum for detailed chemical and physical analysis.
Etymology
The word is derived from the Latin 'spectrum' (appearance or image) and the Greek 'graphos' (writing or recording). It entered English in the late 19th century to describe devices that record light spectra onto photographic plates or sensors.
In the news
In this article, spectrographs are highlighted as critical instruments being developed for the Giant Magellan Telescope to detect exoplanets and study the earliest galaxies. They are essential tools that allow astronomers to interpret the light gathered by the massive telescope.
Korea Astronomy and Space Science Institute increases investment in Giant Magellan Telescope
Read the full article ↗EurekAlert!