Cassiopeia

Cassiopeia is a constellation seen from Earth and named by Humans after the Greek goddess Cassiopeia, who boasted about her beauty.

A Charged Vacuum Emboitment that shunted entropy from N-Space into E-Space existed in this constellation. When the universe was hanging by a thread and entropy was taking over, the Doctor and the Master sent the reboot program from the Pharos Project on Earth to the CVE in Cassiopeia using a light speed overdrive. The signal arrived and restarted the CVE, stopping the entropy. (DW: Logopolis)