As seen in the anime
Planet Nintae (Nin-tay) is a world introduced in the anime, F-Zero: GP Legend. In the English dub, it's identified as Nintae, but in Japanese, it's named Nintese. In Episode 2, The Racer's Edge, Rick encounters Captain Falcon for the first time during a gang shootout, and he won 2nd place at the Grand Prix.
Ikran's F-Zero timeline[]
In it, it's labeled as the place of Falcon's turf, the advanced space harbor, Port Town!
Since Rick's first encounter with Falcon, it hasn't been seen much, other than being classified after the Queen League race and the events of Falcon's Followers. It is the place for the Falcon Flyer, Falcon's Fortress, James McCloud and his hideout, etc. It wasn't identified. but it was also the place where Rick's first bounty-hunting mission took place on isolating and destroying the T-Virus epidemic. So too was the place where Tinsel went to occasionally for stargazing, even after Clash's tragic death, even when Zoda was destroyed.
It was Rick and Tinsel's residence ever since he received the late Falcon's mantle, though they only stop by at times. It was officially their permanent home after their honeymoon there! And she wishes for the Guardians of the Galaxy to make it their homeworld aside from the Milano.