International Gemini Observatory/NOIRLab/NSF/AURA/GHOST Consortium
The red GHOST spectrum
The GHOST red-arm spectrum 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 spectrum measures light from around 530 nm to around 1015 nm. Light that is ‘redder’ than around 750 nm is infrared and is invisible to our eyes.
