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sextant is an instrument used
to measure the angle between
any two visible objects. Its
primary use is to determine the
angle between a celestial object
and the horizon which is known
as the object's altitude. Making
this measurement is known as
sighting the object, shooting the
object, or taking a sight and it is
an essential part of celestial
navigation. The angle, and...
9 years ago
MERCHANT NAVY FORUM