Ectair, or Little Orion, was the fourth planet of the Mozinphar's Star system, which lay within the region of space known as the Outback, located within the boundaries of Federation space but near the Romulan Neutral Zone, in the Alpha or Beta Quadrant. It was the only Class M planet in its system and had no moons. Ectair was a neutral and independent planet, and famously the site of the Treaty of Ectair between the Federation and the Romulan Empire and threatened by a Doomsday machine.