Ornara was the inhabited third planet of the Delos system. The planet had one moon. This was the homeworld for the Ornarans, a pre-warp spaceflight-capable humanoid species. Its population numbered in the thousands.
In the 22nd century, a Federation scout ship arrived in the system to document it and the indigenous species' development. Due to the trade agreement between the Ornarans and the Brekkians, there was frequent freighter travel between this planet and Brekka.
The falsified Starfleet record created for Ro Laren in order to mislead the Maquis during her attempt to infiltrate the group indicated that she was on Ornara following her abandonment of Starfleet. (TNG: "Preemptive Strike")