Tython was a terrestrial planet located in Deep Core's Tython system that played a pivotal role in the history of the Jedi Order. A verdant world that was incredibly rich in the Force, Tython was eventually abandoned when the ever-changing hyperlanes in the region drifted away from the planet and became shrouded in myth. The Martyrium of Frozen Tears was built by Jedi there, and some Jedi scholars made the case that Tython was the site of the Jedi Order's first temple. During the Galactic Civil War, Doctor Chelli Lona Aphra led the Imperial commander Darth Vader to Tython's Meridional Ice Cap to mislead him as to the location of the Rebel Alliance's main base, which was actually on the Outer Rim planet Hoth.
Tython was a verdant, uninhabited, terrestrial planet located in the Tython system in the galaxy's Deep Core, positioned at the coordinates L-10 on the Standard Galactic Grid. It was orbited by at least two moons, with the primary being known as Ashla, and was incredibly rich in the Force. Areas on its surface included the Meridional Ice Cap, and a more temperate region. Tython was home to a number of native fauna, including beasts, birds, butterflies, and small mammals. Tython was covered in forests, grasslands, and mountains.
It shared its name with Tythonian pendants, Tythonian Mastery Tokens, and Jedha City's Tythoni Square.
Tython played a pivotal role in the history of the Jedi Order. The sacred Jedi texts contained a description of Tython's notable beasts. In ancient times, the Jedi built the Martyrium of Frozen Tears in the Meridional Ice Cap. Tython was eventually abandoned when the ever-changing hyperlanes in the region drifted away from the planet.
Shrouded in myth, some Jedi scholars made the case that Tython was the location of the Jedi Order's first temple, although in reality, it was located on the planet Ahch-To. The fabled planet was thought to have troves of holocrons and datacards filled with Jedi wisdom from throughout the ages, and if one were to discover it, they could gain access to unmatched power.
The ancient Ga'Garen Codex held in the Jedi Archives mentioned the planet Tython and its primary moon, Ashla. Its mysteries had confounded linguists for a long time. Months after the dedication of the Starlight Beacon in 232 BBY, Jedi Master Elzar Mann consulted the Ga'Garen Codex and journeyed aboard his Jedi Vector to the Isle of Seclusion on Ashla. Mann had experienced a terrible Force vision during the aforementioned dedication, and chose the Isle as a place where he could meditate in solitude on what he had seen. He waded into the ocean surrounding the Isle, and eventually received a vision that directed him to the planet Valo. Jedi Master Harli Cogra mentioned Elzar Mann's mission to Ashla, in Chronicles of the Jedi, a document detailing the Jedi of the High Republic written in the weeks following the destruction of Starlight Beacon in 230 BBY.
During the Imperial Era, the 15th Deep Core Reserve Fleet operated a hyperspace interdiction checkpoint along the only known hyperspace route between the Empress Teta system and the interior of the Deep Core.
In 3 ABY, in an attempt to save her loved ones who were located at the Rebel Alliance's headquarters on Hoth, Doctor Chelli Lona Aphra brought Imperial forces led by Emperor Palpatine's lieutenant, Darth Vader, to Tython, distracting them from discovering the location of the rebel base. Aphra took Vader to the Martyrium of Frozen Tears in the Meridional Ice Cap on Tython, where the the Dark Lord and his subordinates were ambushed.
At some point between 3 ABY and 4 ABY, the rebel and aspiring Jedi Luke Skywalker had acquired an Aurebesh list of possible Jedi locations from the Galactic Empire, whom he assumed had destroyed and ransacked all of them. The list included Tython.
In 9 ABY, the former Jedi Padawan Ahsoka Tano instructed the Mandalorian Din Djarin to take the Force-sensitive child Grogu to Tython. Djarin did so, traveling to Tython and placing Grogu on the seeing stone. Grogu entered a meditative state while perched on the stone. Meanwhile, the bounty hunter Boba Fett, along with his partner, Fennec Shand, in his ship, Slave I, tracked Djarin to Tython, intent on reacquiring his armor that Djarin got from Cobb Vanth on Tatooine. They were attacked by Moff Gideon's Imperial forces, and after a skirmish and the destruction of Djarin's ship, the Razor Crest, the foundling was ultimately abducted by the warlord's dark troopers.
In 21 ABY, Jedi Master Luke Skywalker traveled to Tython and meditate upon the seeing stone. There, he had a vision of him on Exegol where he dueled nine wraiths before the Force spirit of his father, Anakin Skywalker, came to his aid.
A Tythonian mountain was the site of an ancient temple that had a strong connection to the Force, though it had fallen into ruin by 9 ABY. At the top of the mountain was a seeing stone.
The Meridional Ice Cap contained the underground Martyrium of Frozen Tears, which had a Force-sensitive confessional made of solid kyberite. The ice cap was also dotted with ancient statues of robed figures near the Martyrium's entrance. The seeing stone was on the top of a hill in a scrubland area.
The term "tython" originates in the second draft of what would become Star Wars: Episode IV A New Hope. Tython was first mentioned in the Star Wars canon in Star Wars: Build the Millennium Falcon 36, a 2015 magazine for the Star Wars: Build the Millennium Falcon series. It first appeared in the 2019 comic book Doctor Aphra (2016) 40. In the "Chapter 14: The Tragedy", the sixth episode of The Mandalorians second season, the filming location of Tython was Rocky Peak Park in Simi Valley, California.
In the Star Wars Legends continuity, Tython was first mentioned in the 2002 sourcebook Power of the Jedi Sourcebook, where it was the original homeworld of the Je'daii Order and its successor organization, the Jedi Order.
Star Wars: The Force Awakens Beginner Game places "Tython" predominantly in Standard Galactic Grid square, L-10 and partially in K-10, as does supporting Star Wars Legends material. Star Wars Galaxy Map however places "Tython" predominantly in grid square, K-10 and partially in L-10. This article currently assumes, based on comments by the map's author, Jason Fry, the "Tython" grid placement at K-10 on the Star Wars Galaxy Map to be a graphical error until clarified by a future canon source.