Historical Worlds Of the Jedi Order
While the Jedi have erected numerous enclaves on numerous worlds and abandoned them just as readily, there are worlds which are more closely associated with the Jedi, and with the the knowledge they hold-- which cannot lose that connection.
Ossus- According to most historical accounts, one of the first colonies of the Jedi Order as they spread from Tython. It is here where you made contact with the nascent Republic, and swore yourselves as knights to it. For many centuries, it was the the capital of the Order, as you grew more entwined with the Republic. It was abandoned after Exar Kun's Sith destroyed its surface with solar fire, though it might be reclaimed. (Location: Auril Sector)
Dantooine- With an Enclave created by Vodo-Siosk Baas, it was a small, elite academy, cloaked in secrecy. It garnered something of a reputation, though, having trained Exar Kun, Revan, and Malak. (Location: Raioballo Sector)
Telos IV- Headquarters of the agricultural corps, many of the people of Telos are strong in the Force. Further, after the tragedy of Ossus, it was decided that it would be where the Jedi kept backup archives, though those were destroyed by Darth Revan to mark the beginning of The Jedi Civil War. (Location: Kwymar Sector)
Jedha- The Forge of the Jedi, it is where many of the first "Frozen-Beam" technology experiments took place. In recent centuries it is where the Sentinels have procured their yellow saber crystals, which do not grow on Ilum. (Location: Terrabe Sector)
Ilum- A cold, hostile planet which produces the majority of Jedi lightsaber crystals of blue and green color. (Location: 7G Sector)
Tython- The birthplace of the Jedi Order, it is a world deeply attuned to the Force, in its purest, truest state. A mysterious place, when the Force truly burns there many oddities may take place, and the power of the Jedi waxes. It is currently lost to the Order. (Location: Unknown)
Ahch-To- The grave of the Jedi, it is to your Order as Korriban is to the Sith. Burial mounds dot the entire surface, many covered with simple temples. Those Jedi not bodily claimed by the Force rest here, their teachings with them, waiting for students. (Location: Unknown)
Coruscant- The Great Temple of the Jedi, it is the center of the web which you cast. So long as the Temple stands, the Jedi stand. What else needs to be said? (Location: Coruscant Sector)