The star chart was a map of stars and constellations found within Wan Shi Tong's Library.
After escaping from the library and losing Appa, the scroll proved useful in guiding the group through the Si Wong Desert at night. As the desert had no known landmarks nearby, Katara used the star chart to navigate them through the barren landscape.
- The constellations shown on the star chart closely resemble the northern constellations of Earth, with the equivalent of Earth's North Star centered on the chart, presumably allowing those who use it to find true north when in the Northern Hemisphere of the Avatar World.
- ↑ O'Bryan, John (writer) & Volpe, Giancarlo (director). (July 14, 2006). "The Library". Avatar: The Last Airbender. Season 2. Episode 10. Nickelodeon.
- ↑ DiMartino, Michael Dante, Hamilton, Joshua (writers) & Spaulding, Ethan (director). (September 15, 2006). "The Serpent's Pass". Avatar: The Last Airbender. Season 2. Episode 12. Nickelodeon.
- ↑ Hedrick, Tim (writer) & MacMullan, Lauren (director). (July 14, 2006). "The Desert". Avatar: The Last Airbender. Season 2. Episode 11. Nickelodeon.
- ↑ From older Avatar: The Last Airbender official site, originally on Nick.com (link). No longer updated.