The Visible spEctroGraph and polArimeter (VEGA) was installed in September 2007 at the CHARA array. With 0.3 ms of arc of spatial resolution and up to 30 000 of spectral resolution, VEGA intends to measure fundamental parameters of stars, to study stellar activities and to image and analyze circumstellar environments.

VEGA Instrumentation Paper --- Mourard et al. 2009, A&A, 508, 1073