Multimedia Gallery
- Navigation Methods: Celestial Navigation
Chronometers like this one by Charles Frodsham were used on the U.S. Exploring Expedition (1838-1842).
Chronometers like this one by Molyneaux & Son were used on the U.S. Exploring Expedition (1838-1842).
Chronometers like this one by Parkinson & Frodsham were used on the U.S. Exploring Expedition (1838-1842).
Tradition says this was the first American-made marine timekeeper taken to sea.
A mariner’s astrolabe measures the angle of the Sun or a star above the horizontal line of reference.
This compact projector used film strips to overlay star curves onto special plotting charts to determine lines of position.
Widely used by navigators in the Navy during World War II and the early Cold War.
Mask, Oregon Territory
Using a sextant to find a Sun line of position.
Mice, Funafuti Atoll (Mus exulans, Mus vitiensis)
