The Andorian system was an inhabited planetary system located in Andorian space within the Alpha Quadrant. This system, neighboring the Vulcan system, consisted of the binary stars Procyon A and Procyon B, the inhabited moon Andoria, homeworld of the Andorians, which orbited a gas giant, and at least four other planets, one of which was Procyon V. (ENT: "The Andorian Incident", "Azati Prime", "Kir'Shara", "The Aenar"; DS9: "Tears of the Prophets"; DIS: "Magic to Make the Sanest Man Go Mad")
In a possible future, the historic Battle of Procyon V was fought at this location in the 26th century, between the United Federation of Planets and the Sphere-Builders, wherein the forces of the Federation were successful in driving the Builders back into their transdimensional realm. (ENT: "Azati Prime")
Background information Edit
A picture of a star chart supposedly used for Star Trek: Discovery was tweeted by Ted Sullivan on 28 November 2017. According to this map, the star Andoria was also known as Procyon, or Alpha Canis Minoris. 
According to the Star Trek: Star Charts (p. 36) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), the system was the Procyon system. This system was located in the Beta Quadrant.