Ismar Frontier is a Cluster in Mass Effect 2 located close to the Outer Council Space boundary that features 3 Systems and 14 Planets. Ismar Frontier can be unlocked by completing Dossier:The Veteran. In Mass Effect 2, the galaxy is divided into Clusters, Systems, and Planets. Inside each Cluster you can find a different number of Systems, and within each System you will find mainly Planets, but also Satellites. Below you can find all the Systems and Planets within Ismar Frontier.
The Firewalker Pack DLC also grants you access to the Ismar Frontier Cluster.
All Systems in Ismar Frontier