Gemini South telescope’s GHOST spectrograph captures first light observations of a bright, chemically rich star

This mosaic shows the two GHOST spectra of HD 222925, a remarkably bright, chemically complex star. This star is a prime example of the type of object that GHOST will investigate. The two GHOST spectra shown here, which were produced in the same single observation, measure light from around 350 nm to around 1015 nm. … Read more