There's no way around it: Celestial navigation using a sextant is a complex and involved process that involves a fair amount of calculating, correcting, referring to tables, knowledge of the ...

The angle between the two objects is then read off the scale. What makes a sextant so useful in navigation is its accuracy. It can measure an angle with precision to the nearest ten seconds.

Sextants use a similar premise to astrolabes ... How did your latitude help with navigation? You might know the latitude of ...

Polished brass sextant, diamond-pattern frame type, with polished brass limb wooden handle and threaded hole for stand with shaped mahogany case by Troughton and Simms, Fleet St., City of London, ...