Vignon is an alcoholic beverage served on Equellus.
Apollo orders this beverage prior to his encounter with Lacerta's lackey, Marco, in the nearby town bar. During his conversation with Red-Eye, the Cylon Centurion under Lacerta's control, Apollo comments that the Cylon wasn't missing out on the drink, despite the fact that he orders another at Lacerta's table (The Lost Warrior). Judging from its name, it is apparently intended to be interpreted as a form of wine by the audience.