Grid 898

From Memory Alpha, the free Star Trek reference.

Grid 898 was the designation for a sector of space in the Delta Quadrant occupied by a red giant.

In 2377, the USS Voyager was visited by a hologram of Reg Barclay that had been intercepted and modified by Ferengi thieves hoping to steal Seven of Nine's nanoprobes. The hologram disclosed the existence of another red giant in Federation space and brought plans for using both stars to create a geodesic fold as a gateway back to the Alpha Quadrant.

Voyager had detected the red giant in Grid 898 a few days prior to the Barclay hologram's arrival. (VOY: "Inside Man")