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Tool for angle measurement
A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. Its primary use is to measure the
Sextant
Topics referred to by the same term
Look up sextant in Wiktionary, the free dictionary. Sextant may refer to: Sextant (circle), a circular sector equal to one sixth of a circle, or a third
Sextant_(disambiguation)
Measuring instrument in Astronomy
sextants are devices depicting a sixth of a circle, used primarily for measuring the position of stars. There are two types of astronomical sextants,
Sextant_(astronomy)
Celestial navigation device
The Bris sextant /ˈbriːs/, or Bris Mini-Sextant, is not a sextant proper, but is a small angle-measuring device that can be used for navigation. The Bris
Bris_sextant
1973 studio album by Herbie Hancock
Sextant is the eleventh studio album by American jazz pianist Herbie Hancock, released on March 30, 1973, by Columbia Records. It was Hancock's first
Sextant_(album)
Air navigation instrument
The bubble octant and bubble sextant are air navigation instruments. Although an instrument may be called a "bubble sextant", it may actually be a bubble
Bubble_octant
1993 compilation album by Pavement
Westing (By Musket and Sextant) is a compilation of the early EPs and singles by American indie rock band Pavement. It features all the tracks from their
Westing (By Musket and Sextant)
Westing_(By_Musket_and_Sextant)
The Sextant Formation is a geologic formation in Ontario. It preserves fossils dating back to the Devonian period. Earth sciences portal Ontario portal
Sextant_Formation
Navigational instrument
equatorial sextant is a modified version of a sextant. One historically significant instrument called by that name was John Flamsteed's equatorial sextant, installed
Equatorial_sextant
Class of navigational instruments
for various sextants. A pillar sextant can be either: A double-frame sextant as patented by Edward Troughton in 1788. A surveyor's sextant with a socket
Reflecting_instrument
Navigation using astronomical objects to determine position
with a second hand or digit, an almanac with lunar corrections, and a sextant are used. With no knowledge of time at all, a lunar calculation (given
Celestial_navigation
Equation to derive time of sunset and sunrise
Monitoring Laboratory - Global Radiation and Aerosols. "Correction Tables for Sextant Altitude". www.siranah.de. Young, Andrew T.; Kattawar, George W. (1998-06-20)
Sunrise_equation
Method used in early text mode video hardware to emulate raster graphics
table of a 2 × 3 block mosaic matrix of so-called squots (square dots) or sextants. Less often used versions use a 1 × 6 "matrix", in which case these six
Semigraphics
Portion of a disk enclosed by two radii and an arc
central angles are sometimes given special names, such as quadrants (90°), sextants (60°), and octants (45°), which come from the sector being one quarter
Circular_sector
Process of monitoring and controlling the movement of a craft or vehicle
longitude. Further improvements in ocean navigation led to the first proper sextant in 1757, the parts and usage developed by various inventors including Pierre
Navigation
1943 WWII strategy meeting between the US, UK, and China
The Cairo Conference (codenamed Sextant), also known as the First Cairo Conference, was one of fourteen summit meetings during World War II, which took
Cairo_Conference
2001 British TV series or programme
2001 to 2002 on ITV and YTV. Created by Granada Kids and co-produced with Sextant Entertainment, it was filmed mainly with animatronic puppets, and also
Don't_Eat_the_Neighbours
Apollo spacecraft guidance system
platform angles to signals usable for servo control optical units, a Space Sextant for the CM and an Alignment Optical Telescope for the LM a mechanical frame
Apollo_PGNCS
Unicode character block
form of new block-shaped characters, line-drawing characters, and 60 "sextant" characters (semigraphic character made up of six smaller blocks, also
Symbols_for_Legacy_Computing
Sextant in Portland, Oregon
Southeast Portland is one of the sextants of Portland, Oregon. Parts of Southeast Portland are contained in Portland City Council Districts 1, 3, and 4
Southeast_Portland,_Oregon
Pop band from Canada
label Sextant. The album's first single was "Cadillac Dress", released as a download from the band's website. After the album's release, Sextant filed
SoulDecision
Constellation on the celestial equator
Polish astronomer Johannes Hevelius. Its name is Latin for the astronomical sextant, an instrument that Hevelius made frequent use of in his observations.
Sextans
Canadian singer-songwriter and guitarist from Manitoba
Bachman's second album, Staring Down the Sun, was released in Canada on Sextant Records in August 2004 and was released in the United States by Artemis
Tal_Bachman
Timurid sultan, astronomer and mathematician (1394–1449)
increased his accuracy by increasing the length of his sextant; the so-called Fakhri sextant had a radius of about 36 meters (118 feet) and the optical
Ulugh_Beg
Celestial navigational algorithm
deriving from a sight (in celestial navigation usually obtained using a sextant) the information needed for establishing a line of position, generally
Sight_reduction
Second crewed space flight in NASA's Project Gemini
flight to perform many scientific experiments in space, including use of a sextant to investigate the use of celestial navigation for lunar flight in the
Gemini_4
with the octant and early sextant; the sextant eventually displaced the others, and is still used to this day. The sextant was mentioned by Isaac Newton
History_of_latitude
English actress and filmmaker (born 1991)
acclaim. She directed Know Thyself (2016), starring Christian Coulson, and Sextant (2016), both of which featured landscape and emotion as themes. Wright's
Bonnie_Wright
Observatory in Samarkand, Uzbekistan
it”. This information, about the sextants in Maragha is contradictory to other sources that state there were no sextants at Maragha. This contradiction
Ulugh_Beg_Observatory
1973 studio album by Herbie Hancock
experimental albums by Hancock's "Mwandishi" sextet: Mwandishi, Crossings, and Sextant, released between 1971 and 1973. He later reflected on moving away from
Head_Hunters
English polymath (1642–1727)
J. (2009). Sextants at Greenwich: A Catalogue of the Mariner's Quadrants, Mariner's Astrolabes, Cross-staffs, Backstaffs, Octants, Sextants, Quintants
Isaac_Newton
Process of steering a ship from a starting point to a destination
other improvements in astronomical techniques (astrolabe, Jacob's staff, sextant, cartographic techniques (portulan and shipbuilding (caravel, nau, galleon)
Marine_navigation
NASA telescope on International Space Station
selected by NASA to proceed to formulation phase in April 2013. NICER-SEXTANT uses the same instrument to test X-ray timing for positioning and navigation
Neutron Star Interior Composition Explorer
Neutron_Star_Interior_Composition_Explorer
Window dome for astronomical navigation on airplanes
nighttime by referencing the stars. The practice of sighting stars using a sextant had been commonplace amongst navigators for hundreds of years aboard ships
Astrodome_(aeronautics)
Instrument for observation from a concealed position
2023-12-25. "Periscope Aircraft Sextant | Pritzker Military Museum & Library | Chicago". Reichel, Jack. "Perscopic Sextant". ION Navigation Museum. Archived
Periscope
Measuring instrument used primarily in navigation; type of reflecting instrument
arrangement somewhat different from the two mirrors found in modern octants and sextants. The diagram on the right shows the configuration of the instrument. His
Octant_(instrument)
1991 EP by Pavement
later made available on the Drag City compilation Westing (by Musket & Sextant). The EP was recorded over the course of two days at Louder Than You Think
Perfect_Sound_Forever_(EP)
List of geography award winners
reverse side shows a figure of Britannia, wearing a helmet and standing by a sextant and globe. She is holding a wreath in her outstretched right hand and a
List of recipients of the Founder's Medal
List_of_recipients_of_the_Founder's_Medal
TRIDENT, the fourth conference was QUADRANT, the sixth conference was SEXTANT, and the eighth conference was OCTAGON. The last wartime conference was
List of Allied World War II conferences
List_of_Allied_World_War_II_conferences
Sextant of Portland, Oregon
North Portland is one of the six sextants of Portland, Oregon. North Portland is a diverse mixture of residential, commercial, and industrial areas. It
North_Portland,_Oregon
were re-released together for the 1993 compilation Westing (By Musket and Sextant). The band's next studio album release, 1994's Crooked Rain, Crooked Rain
Pavement_discography
Type of optical rangefinder
and bottom of the object as observed at the device. It is similar to a sextant, in that the device is using mirrors to measure an angle between two objects
Stadimeter
British novelist (1934–2024)
Act of War] (1979) Trapp's Peace (1979) The Auriga Madness (1980) The Sextant (1981) Spearfish (1983) The Bone Collectors (1984) A Thunder of Crude (1986)
Brian_Callison
American reality television series episodes
car; a collection of ten different barbed wire designs; a 1941 U.S. Navy sextant from the U.S.S. Hector; and an antique Thurston sawing in half box. Corey
List_of_Pawn_Stars_episodes
Canadian pop-rock duo
incarnation of Sky came about, with Friedman being replaced by Karl Wolf. Under Sextant Records, the group released a third album, Picture Perfect, which spawned
Sky_(Canadian_band)
collection of the United States Geological Survey Museum is a quintant sextant or lattice sextant (pictured) that was manufactured by Spencer, Browning & Rust.
William Spencer (navigational instrument maker)
William_Spencer_(navigational_instrument_maker)
French writer
L’Attente, n°62/63 Sur le limbe du sextant, n°64 Deux maisons, n°65 Les Copeaux, n°66/67 Sur le limbe du sextant (2), n°68 En chemin, n°69/70 Bialot
Thierry_Laget
Norwegian sculptor
Erik Hesseberg's sextant from the Kon-Tiki expedition
Erik_Hesselberg
Most populous city in Oregon, U.S.
addressing sectors (N, NE, NW, S, SE and SW) are now officially known as sextants. The five previous addressing sections of Portland, which were colloquially
Portland,_Oregon
Anti-nuclear weapons activist
Reynolds and daughter Jessica take sextant readings, c. 1958.
Earle_L._Reynolds
length. The optical version of this instrument used two mirrors on a common sextant. By aligning the object on the mirrors using a precise vernier, the position
Macrometer
Database management system
documentation. Unfortunately, it doesn't yet fulfill these expectations". Sextant in 1983 approved of dBASE II 2.3b for Heath/Zenith CP/M's power and flexibility
DBase
Astronomical instrument
Discovery for all these purposes. The astrolabe, which is a precursor to the sextant, is effective for determining latitude on land or calm seas. Although it
Astrolabe
American magnet materials company
Anderson, Indiana, in 1986. In 1995, GM sold Magnequench for US$70 million to Sextant Group, Beijing San Huan New Material High-Tech, and China National Non-Ferrous
Magnequench
Devices for observing, measuring or recording astronomical data
to its source Scaphe: sundial said to have been invented by Aristarchus Sextant: measuring instrument in AstronomyPages displaying short descriptions of
List of astronomical instruments
List_of_astronomical_instruments
Partners (D) April 29 – May 3, 2026 500 (LV) – 17% 20% 5% 4% 47% – 5% Sextant Strategies & Research (D) April 28 – May 3, 2026 819 (LV) ± 3.0% 18% 17%
2026 United States House of Representatives elections in California (districts 1–26)
2026_United_States_House_of_Representatives_elections_in_California_(districts_1–26)
Danish astronomer (1546–1601)
with several astronomical instruments, including quadrant instruments, sextants, and astronomical clocks. Tycho Brahe's observations and calculations at
Tycho_Brahe
Architecture of the Timurid Empire
originally was a cylindrical three-story building that contained a giant sextant, sundial, and sector. Many new constructions occurred in the second half
Timurid_architecture
Natural number
sexdactyly have six fingers on each hand The measuring instrument called a sextant got its name because its shape forms one-sixth of a whole circle A group
6
Monument in Lisbon, Portugal
Janeiro Avenues. It consists of a stainless steel sculpture of wings and a sextant placed on a concrete pedestal, and commemorates the first aerial crossing
Monument to the First Aerial Crossing of the South Atlantic (Alvalade)
Monument_to_the_First_Aerial_Crossing_of_the_South_Atlantic_(Alvalade)
1943 WWII Allied conference with Turkey
The Second Cairo Conference of December 4–6, 1943 (codenamed Sextant), held in Cairo, Egypt, addressed Turkey's possible contribution to the Allies in
Second_Cairo_Conference
Clock used on ships to aid in navigation
celestial navigation usually requires a marine chronometer to measure time, a sextant to measure the angles, an almanac giving schedules of the coordinates of
Marine_chronometer
Navigational method
the celestial body is measured with a sextant and the time noted. The Sextant reading is known as the 'Sextant Altitude'. This is corrected by use of
Longitude_by_chronometer
American computer company (1979–1996)
1995: CruisePad; Z-star ES Zimmerman, Frederick (Winter 1983). "HUGCon 1". Sextant. No. 4. pp. 7–34. Retrieved January 24, 2026. Greenhouse, Steven (March
Zenith_Data_Systems
Medieval astronomical observatory
mural quadrants, and sextants; and several instruments he invented himself, including the mushabbaha bi'l manattiq, a framed sextant with cords for the
Constantinople observatory of Taqi ad-Din
Constantinople_observatory_of_Taqi_ad-Din
Spreadsheet program
In a 1983 evaluation of eight spreadsheets for Heath/Zenith computers, Sextant approved of Multiplan's computation speed and menu structure, finding them
Multiplan
1994 novel by Cormac McCarthy
looked to be truing some older, some subtler instrument. Astrolabe or sextant. Like a man bent at fixing himself someway in the world. Bent on trying
The_Crossing_(McCarthy_novel)
Canadian singer (born 1973)
Occupations Singer songwriter Years active 1993–present Labels MCA (1999–2002) Sextant (2002–2005) Interscope (2005–present) Website trevorguthrie.com
Trevor_Guthrie
Five early C18 observatories in India
Equatorial ring Equatorial sundial Globe Gnomon Mural instrument Quadrant Sextant Sundial Triquetrum Water clock Yantraraja Concepts Astrological sign Axial
Jantar_Mantar
French exploration ship launched in 1811
from an early navigational instrument, the astrolabe, a precursor to the sextant. Louis-Isidore Duperrey commanded Coquille on its circumnavigation of the
French_ship_Astrolabe_(1811)
Swiss watch manufacturer
Cimier model Seven Seas Sextant
Cimier
United States Navy female sailor
Women Naval Officers". The Sextant. Retrieved 2025-02-24. "Navy Commissions First African American Woman Officers". The Sextant. Retrieved 2025-02-24. "U
Edna_Young
Highest award in the United States Armed Forces
2010. Retrieved July 23, 2006. "The Making of the Medal of Honor". The Sextant. Archived from the original on May 25, 2025. Retrieved September 30, 2025
Medal_of_Honor
Indian astronomer, astrologer & mathematician
Equatorial ring Equatorial sundial Globe Gnomon Mural instrument Quadrant Sextant Sundial Triquetrum Water clock Yantraraja Concepts Astrological sign Axial
Mazhamaṅgalaṃ Śaṅkaran Naṃpūtiri
Mazhamaṅgalaṃ_Śaṅkaran_Naṃpūtiri
Theories on 1937 disappearance of American aviators
island and its lagoon using sextants around November 1939, before the box was discovered by Gallagher. A Brandis and Sons sextant with serial number 3500
Speculation on the disappearance of Amelia Earhart and Fred Noonan
Speculation_on_the_disappearance_of_Amelia_Earhart_and_Fred_Noonan
Probolsky Research Sextant Strategies & Research FM3 Research (D) Impact Research (D) FM3 Research (D) FM3 Research (D) Probolsky Research Sextant Strategies
2024 San Francisco mayoral election
2024_San_Francisco_mayoral_election
American football player (born 1998)
Belmont Hill Sextants Season Rec Yards Avg TD 2015 30 652 21.7 5 2016 31 632 20.4 10 2017 34 514 15.1 5
Jake_Bobo
American naval officer (1888–1957)
legible) sextant sights that sharply differ from Byrd's later June 22 typewritten official report to the National Geographic Society. Byrd took a sextant reading
Richard_E._Byrd
Stark Tables for Clearing the Lunar Distance and Finding Universal Time by Sextant Observation Including a Convenient Way to Sharpen Celestial Navigation
Gaussian_logarithm
1978 studio album by Herbie Hancock
Speak Like a Child The Prisoner Fat Albert Rotunda Mwandishi Crossings Sextant Head Hunters Dedication Thrust Man-Child Secrets Third Plane Herbie Hancock
Sunlight (Herbie Hancock album)
Sunlight_(Herbie_Hancock_album)
characteristics and function.[citation needed] In particular, its first Sextant watch was born in the 1940s, featuring a "handless" display with a "graduated
Juvenia
Rust made a variety of navigational instruments, including octants and sextants. William Spencer and Samuel Browning's partnership lasted from 1778 to
Spencer,_Browning_&_Rust
Event causing a ship to wreck
measured by chip log), and celestial navigation using marine chronometer and sextant—were sufficiently accurate for ocean voyages, but these techniques (and
Shipwrecking
Sextant of Portland, Oregon
Sextant of Portland, Oregon
Northeast_Portland,_Oregon
Bird invented the first sextant. This replaced the Davis quadrant and the octant as the main instrument for navigation. The sextant was derived from the
History_of_navigation
Integer associated with a civil day
Equatorial ring Equatorial sundial Globe Gnomon Mural instrument Quadrant Sextant Sundial Triquetrum Water clock Yantraraja Concepts Astrological sign Axial
Kali_ahargana
Expedition leader
been criticized for a lack of supporting logs, having no one to confirm sextant readings, or for other reasons. Kuznetsov led the Sever-2 team of Soviet
Aleksandr Kuznetsov (explorer)
Aleksandr_Kuznetsov_(explorer)
Astronomical navigation technique
the sextant altitude for various errors and corrections. The instrument may have an error, IC or index correction (see article on adjusting a sextant).
Intercept_method
Dental examination
be present in a sextant for it to be scored. If only 1 tooth is present in a sextant, the tooth is included in the adjoining sextant. The probe is "walked
Periodontal_examination
Documentary TV series and book by James Burke
posed by a wood shortage, glass making, coal, plate glass, mirrors, the sextant, the discovery of granite, and seashells in the mountains, which enabled
Connections (British TV series)
Connections_(British_TV_series)
Class of nuclear-powered ballistic missile submarines
dive tank; i - attack periscope; ii - navigation periscope; iii - radio sextant; iv - radar/ESM system; v - snorkel; vi & viii - radio communications;
Typhoon-class_submarine
First non-stop transatlantic flight (June 1919)
encountered thick fog, preventing Brown from being able to navigate using his sextant. Blind flying in fog or cloud is hazardous without gyroscopic instruments
Transatlantic flight of Alcock and Brown
Transatlantic_flight_of_Alcock_and_Brown
bissextus, semisextile, sestet, sestina, Sext, sextain, sextan, sextans, sextant, sextary, sextic, sextile, sextillion, siesta, sixte sibil- hiss Latin
List of Greek and Latin roots in English/P–Z
List_of_Greek_and_Latin_roots_in_English/P–Z
Annual dance
the *20’s 2009 – Une Merveille 2008 – Winterwelt 2007 – Mit Säbel und Sextant 2006 – Die Stadt 2005 – Sternenwerfer 2004 – Ball-alaika 2003 – Kitsch
Polyball
Third Islamic caliphate
Navigational sciences were highly developed, making use of a rudimentary sextant (known as a kamal). When combined with detailed maps of the period, sailors
Abbasid_Caliphate
German nobleman
Luckner then seized the 90-ton scow Moa and, with the help of a handmade sextant and a map copied from a school atlas, he sailed for the Kermadec Islands
Felix_von_Luckner
Celestial navigation device that determines latitude
make your own kamal; all you need is piece of wood, string and help of a sextant or any angle measuring device for the first calibration of your personal
Kamal_(navigation)
British mathematical instrument maker
for making high quality mural quadrants, octants, and sextants. Nevil Maskelyne used sextants made by Bird that had telescopes specially made by John
John_Bird_(astronomer)
Auxiliary scale of a measurement device, used to increase precision
Examples are calipers and micrometers to measure to fine tolerances, on sextants for navigation, on theodolites in surveying, and generally on scientific
Vernier_scale
Country in the Caribbean
Fahey, John E. (7 February 2023). "Why did the USS Maine explode?". The Sextant. Archived from the original on 17 April 2025. Retrieved 9 May 2025. "Treaty
Cuba
travel, tourism, insurance
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