Throughout the film, Buzz (under the impression that he is a real Space Ranger), tries to makes contact with Star Command to no avail, and would continue to do so until he came to the realization that he was a toy.
Star Command is again mentioned by Ultra Buzz Lightyear (who too is under the impression that he is a real Space Ranger) when he suddenly comes to life and apprehends the original Buzz.
The spin-off animated series, Star Command is a large space station orbiting Capital Planet, the headquarters of the Galactic Alliance. It is the base of operations of the Space Ranger Corps, whose main purpose is to keep the galaxy safe from criminals. The station is shaped like two three-dimensional triangles wedged together at their bases. Its exact size is unknown, but it can easily accommodate hundreds of Space Rangers, LGMs, and Star Cruisers alike.
There are several launch bays, cafeterias, and training decks. The Briefing Room is where Space Rangers get the information on important missions from Commander Nebula. A large table is centered in the middle of the room with many chairs. The room also contains a large window which overlooks Capital Planet. The Launch Bay is where Star Command's ships are docked, serviced, and launched from here. Mission Control is the main deck of Star Command. Here, LGMs and Space Rangers alike regulate traffic and give clearance to vessels launching out of the station and vessels to and from the Galactic Alliance's territory. The Science Bay is where the LGMs spend their time developing new weapons and technology, as well as where they repair XR the numerous times he's blown up or malfunctioned.
Lotso refers to the Butterfly room as Star Command when he and his gang arrive to bring a reset Buzz back while greeting Andy's toys on Thursday morning, then after Buzz frees himself from captivity, he attempts to escape while trying to contact Star Command, informing them that he has been taken hostage by his own prisoners before Hamm and Rex tackle and restrain him, allowing Woody, Slinky, and Barbie to attempt to return him to normal.
Star Command is mentioned by Buzz as he tries to contact the station until Alisha asks what he is doing as he was narrating and he stops from embarrassment.
In Lightyear, it's unknown why there were no other Star Command ships or headquarters Buzz’s team could call for support when crashing on T'kani prime.
The dominant color of the Space Ranger suit is white to reflect the space suits of the early Apollo astronauts. The colors lime green and purple were also added because they are John Lasseter and his wife Nancy's favorite colors respectively.[2]