A sextant was a doubly reflecting navigation instrument that measured the angular distance between two visible objects. The primary use of a sextant was to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.
A sextant was lying on Captain Toms' table when the Monarch was chasing the Ruddy Rose. Hector Barbossa also had a sextant in front of him when he was trying to plot the Black Pearl's course to the Trident of Poseidon.
Behind the scenes
- "A map maker’s sextant calculates the angle between a star and the horizon. So even if they are worlds apart, they are forever entwined - the stars and the horizon existing as lovers."
- ―Carina Smyth
- In the original screenplay draft for Pirates of the Caribbean: The Curse of the Black Pearl when Hector Barbossa talked with Elizabeth Swann about the Curse of the Aztec Gold, he opened his Captain's chest which contained a Mayan codex, some gold, charts, and a sextant.
- Sextant is one of the Odds and Ends the players could collect in Pirates of the Caribbean Online.
- In Pirates of the Caribbean: Dead Men Tell No Tales Carina Smyth takes a chronometer in George Swift's chart house. In Jeff Nathanson's early draft of the script she took a sextant.