KnowraSextantLinked fromLinked fromThe 14 pages that link to Sextant, each with the reason it gives.All 14Broader topic 1Related 8Compared with 5Celestial navigationRelated: It measures the altitude of a celestial body above the horizon.Marine chronometerRelated: A sextant could establish local solar time by measuring the Sun’s altitude.Equatorial coordinate systemRelated: Celestial navigation can combine observed altitudes with tabulated equatorial positions.Nautical almanacRelated: Navigators use it to measure the altitudes that almanac-based calculations require.Lunar distance methodRelated: Navigators use it to measure the Moon’s distance from a star or the Sun.BackstaffRelated: The sextant continued the backstaff’s navigational purpose with greater precision and versatility.Fred NoonanRelated: Noonan used sextant observations to obtain the angles needed for celestial fixes.Vernier scaleRelated: Its graduated arc can be read with a vernier to obtain angular measurements.