STELES (SOAR Telescope Echelle Spectrograph) is the High-Resolution Échelle Spectrograph installed at the 4.1-m SOAR telescope (Chile).
First light articles
New Instrument at SOAR Achieves First Light with Observations of Remarkable Binary Star System (NOIRLab)
The High-Resolution STELES Spectrograph Achieves First Light at SOAR (The Mirror, NOIRLab, page 26) - PDF version
This telescope just levelled up, and will soon start hunting ancient stars that exist only in theory (Sky at Night Magazine)
Primeira luz do STELES (LNA em Dia Nº67)
Instrument Specifications
User Manual (TBD)