Definition
The FAA's modern radar display and data-processing system used by approach and departure controllers in TRACONs (Terminal Radar Approach Control facilities) and at certain towers. STARS presents aircraft targets, data tags, weather, and traffic information to controllers, and provides automation tools for sequencing, separation, and conflict alerting in terminal airspace.
Plain English
The computer and screen system that terminal-area controllers use to see and manage aircraft on radar within roughly 30–40 miles of busier airports.
Context Anchor
Pilots encounter STARS indirectly when receiving service from approach control, departure control, or some tower facilities near busy airports.
Derivation
Named for what it replaced — the older ARTS (Automated Radar Terminal System). 'Standard' reflects the goal of one common system across FAA and DoD terminal facilities, instead of a patchwork of older equipment.
Why Pilots Care
STARS gives controllers faster, more accurate aircraft position and altitude data, directly improving traffic flow, reducing delays, and maintaining safe separation in busy terminal areas.
Intuition Check
Do not read “terminal” here as the airline passenger building. In STARS, “terminal” means the air traffic control area around an airport where arrivals and departures are handled.
Example Sentence 1
A STARS outage at the TRACON forced controllers to switch to backup procedures and reduce the arrival rate.
Example Sentence 2
STARS processes radar data in real time so controllers can maintain proper spacing between arriving aircraft.