| The arc was extended from an octant to a sextant and a stout handle was added at the back of the instrument. |
| The instruments used in taking observations for latitude may be either a sextant and an artificial horizon, or a small theodolite. |
| The goal of this expedition was to navigate to the North Magnetic Pole by traditional means using a sextant and an astrocompass. |
| Behind him, he towed a raft outfitted with a coffin-size sleeping compartment and carrying fishing tackle, compass, sextant, and three portable water desalinators. |
| A compass, sextant and charts were the necessary tools for plotting a course. |
| The sextant, a navigational tool used to indicate latitude, was lent to the museum by a local maritime historian. |
