The Time Lords Homeplanet

The Time Lords Homeplanet is an Unnamed Planet that is home to the Time Lords.

Geography
From the planet's surface, it boasted an orange sky at night and had trees with bright silver leaves (DW: "A desperate Venture")

The Old times
Omega was the founder of Time Lord society (DW: The Three Doctors) He invented time travel

Beginning of Non-Interference policy
The Time Lords Created the Non-Interference policy, stating that The Time Lords shouldn't interfere in other planetary affairs after they had used time travel that damaged other species (DW:The War Games)

Dealings with the doctor
The Time Lords recalled the doctor back to their homeplanet, they had also put the War Lord on trial, and then would send Jamie and Zoe, the Doctor's then companions. They then put the Doctor on trial and sentenced him to exile on Earth and a Forced Regeneration (DW:The War Games,Spearhead From space)

The Omega incident
The Time Lords were easily rendered helpless when Omega began to drain energy from the Time Lords time travel facility and were saved by the Intervention of the first three doctors (DW: The Three doctors)

Behind the scenes
Originally, in the taking of the tower, the doctor would've referred to his Homeplanet as Gallifrey, however, PJ hammond and producer Paddy russell cut that line out as to keep the mystery of the Time Lords. In the 1975 comic The return of the daleks, the Time Lords homeplanet is referred to as Jewel, however this is not mentioned in the main series. During the 90s, a proposal for the 1990s series of doctor who, the doctor would be a descendant of omega and grandson of dezan, his homeplanet was named Unici in that proposal.