40 Eridani A

40 Eridani A is the primary star of the 40 Eridani star system and is locatedi n the constellation Eridanus. The fictional planet Vulcan from the Star Trek mythos revolves around this star. The 40 Eridani star system is also referred to as the Vulcan system. 40 Eridani is a trinary star system, which includes 40 Eridani A, 40 Eridani B and 40 Eridani C.