Marine Sextants
The
Marine Sextant is an instrument for determining the angle between the
horizon and a celestial body such as the Sun, the Moon, a star, or a planet
and it is used in celestial navigation to determine the location of the
observer. The device consists of an arc of a circle, marked off in degrees,
and a movable radial arm pivoted at the center of the circle. A telescope or
sight, mounted rigidly to the framework, is lined up with the horizon. The
radial arm, on which a mirror is mounted, is moved until the star is
reflected into a half-silvered mirror in line with the telescope and
appears, through the telescope, to coincide with the horizon. The marine sextant has the advantage that even though the ship rolls or the user have an unsteady hand, the images of the two objects that one is looking at stay in alignment. Marine sextants literally circumnavigate the glove. These are extensively used by professional fishermen, merchant marines, navy personnel and yachtsmen alike.
The finest quality of the marine sextant has been proven in many years of use by ocean-going yachtsmen and marine industry professionals. Its optical system is designed with the latest knowledge to assure the maximum performance The first choice to make is between plastic or metal construction. A professional marine sextant, offers full illumination on both the arc and the drum, large mirrors, and an inclined handle for a comfortable grip.
