Ronara Prime was the inhabited prime planet in the Ronara system. This system was located in the Demilitarized Zone.
In 2370, Lieutenant Ro Laren was sent to Ronara on an undercover mission to infiltrate the Maquis. She was masquerading as a Starfleet fugitive, and successfully caught the attention of Santos, who brought her to a Maquis colony. (TNG: "Preemptive Strike")
Background information
According to the script, the pronunciation of Ronara was "ruh-NAH-ruh". [1]
The matte painting of the Ronara Prime surface was originally used in DS9: "Shadowplay" to represent Yadera II.
The species represented in the Ronara bar included Bajorans, Klingons, Kobliad, and Vulcans. There was also a person in a Pakled costume, but lacking Pakled make-up.
According to the Star Trek: Star Charts, on page 47 and on the chart "United Federation of Planets I", Ronara Prime was located in the Ronara star system. This system was located in the Alpha Quadrant. The system's primary was a Class F star. It had a magnitude of +5, which was the same brightness of Sol. By 2378, Ronara Prime had become a Federation member.