Miller orbiting Gargantua
Pantagruel is the name of a neutron star that orbits the black hole Gargantua.
Pantagruel & Gargantua is a binary-system containing a black hole orbited by Miller, Mann, and a neutron star - which is orbited by Edmunds, located within a few months flight from the wormhole.
History
The black hole Gargantua was used for a powered slingshot maneuver to facilitate Brand's arrival on Edmunds. It also transported Cooper and TARS to the 5th dimension, allowing them see into the black hole's singularity and transmit the quantum data to Cooper's daughter.
2008 script
The names of the neutron star and black hole most likely come from, The Life of Gargantua and of Pantagruel, a pentology of novels written in the 16th century by Francois Rabelais, featuring the adventures of two giants: Gargantua and his son Pantagruel. Pantagruel is named after pants and gruel.