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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. The primary use of a sextant is
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)
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)
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)
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)
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
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
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
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
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
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
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
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
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
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
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
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
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
characteristics and function.[citation needed] In particular, its first Sextant watch was born in the 1940s, featuring a "handless" display with a "graduated
Juvenia
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
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
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
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
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)
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
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
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
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
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
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
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
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
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)
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
> Releases". AllMusic. Rovi Corporation. Retrieved October 26, 2012. "Sextant / Secrets > Releases". AllMusic. Rovi Corporation. Retrieved October 26
Herbie_Hancock_discography
2001 British TV series or programme
Original language English Production Production companies Granada Kids Sextant Entertainment Original release Network ITV (CITV) YTV (Canada) Release
Don't_Eat_the_Neighbours
14th–16th-century Asian cultural movement
Mo'ayyeduddin Urdi, the sine and versine instrument of Urdi, the sextant of al-Khujandi, the Fakhri sextant at the Samarqand observatory, a double quadrant Azimuth-altitude
Timurid_Renaissance
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
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
American engineer who invented Sanforized cotton
several inventions, including a sextant and farm mowers, before patents for Sanforizing. In 1896, he invented the bubble sextant for use in celestial navigation
Sanford_Lockwood_Cluett
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
Life that does not originate on Earth
available data with naked-eye observatories, which worked with highly complex sextants and quadrants. Tycho could not make sense of his observations, but Johannes
Extraterrestrial_life
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
Norwegian sculptor
Erik Hesseberg's sextant from the Kon-Tiki expedition
Erik_Hesselberg
Richard (2009). Sextants at Greenwich: A Catalogue of the Mariner's Quadrants, Mariner's Astrolabes, Cross-staffs, Backstaffs, Octants, Sextants, Quintants
Regiment_of_the_North_Pole
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
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)
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
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
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
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
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
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
18th and early 19th centuries. In 1797, Jones introduced the box sextant or 'pocket sextant' for nautical navigation, an early marvel of mechanical miniaturisation
William_Jones_(optician)
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
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)
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
American sailor and author
Ashcraft was forced to navigate the yacht manually with the help of a sextant and a watch. She survived mainly on canned food during this time. On November
Tami_Oldham_Ashcraft
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
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
American software developer and early Microsoft employee
Fredrick (Fall 1982). "The H8's Fifth Anniversary: Origins and Outlook". Sextant. Shoemaker, D C (June 1981). "Treasures on Disk". Letters. Byte. p. 14
Gordon_Letwin
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
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)
Astronomer from Danzig (1647–1693)
hub of innovation, where they employed sophisticated tools such as brass sextants and octants. These instruments played a significant role in refining observational
Elisabeth_Hevelius
2019 film by Rebecca Zlotowski
That night, Andrès accuses the cousins of stealing a valuable antique sextant and has Stewart throw them out of the yacht. Naïma insists that they prove
An_Easy_Girl
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
Anti-nuclear weapons activist
Reynolds and daughter Jessica take sextant readings, c. 1958.
Earle_L._Reynolds
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
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)
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
Type of celestial coordinate system
Geocentric coordinates Horizon Vertical and horizontal Meridian (astronomy) Sextant Solar declination Spherical coordinate system Vertical circle Zenith Note
Horizontal_coordinate_system
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
constructed by Ibn Yunus 994 – First sextant constructed in Ray, Iran, by Abu-Mahmud al-Khujandi. It was a very large mural sextant that achieved a high level of
Timeline of telescopes, observatories, and observing technology
Timeline_of_telescopes,_observatories,_and_observing_technology
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)
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
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
Space between a tooth and gums
patient might require. The patient's dentition is divided into six sextants – three sextants for the mandible and maxillary respectively. All teeth, except
Gingival_sulcus
5th episode of the 3rd season of Once Upon a Time
Dallas) as the Dreamshade starts to consume him, and Hook sets off to find a sextant that could help the Storybrooke inhabitants escape Neverland. The episode
Good_Form_(Once_Upon_a_Time)
Technical communication document
15507. S2CID 35615987. Zimmerman, Frederick (Winter 1983). "HUGCon 1". Sextant. No. 4. pp. 7–34. Retrieved January 24, 2026. Sandberg-Diment, Erik (1986-09-16)
User_guide
American jazz multi-instrumentalist (born 1940)
Hancock Mwandishi (Warner Bros., 1971) Crossings (Warner Bros., 1972) Sextant (Columbia, 1973) Head Hunters (Columbia, 1973) Thrust (Columbia, 1974)
Bennie_Maupin
Length of time in Indian astronomy
Equatorial ring Equatorial sundial Globe Gnomon Mural instrument Quadrant Sextant Sundial Triquetrum Water clock Yantraraja Concepts Astrological sign Axial
Vāra_(astronomy)
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
2026_United_States_House_of_Representatives_elections_in_California
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
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
Canadian Celtic rock band
Ontario, Canada Genres Celtic rock Years active 1998–present Labels EMI, Sextant, Mudpiper Members Robby Campbell Sandy Campbell Andy Gingerich Alex Showdra
Mudmen
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)
Commemorative coins of the Eurozone
crossing was achieved by using only internal means of navigation: a modified sextant and a course corrector. The design shows the representation of one of the
2_euro_commemorative_coins
War campaign in WWII
Thailand was a wartime ally of Japan. "Sextant and Eureka Conferences, November–December 1943" (PDF). Sextant. World War II Inter-Allied Conferences.
Operation_Matterhorn
1965 studio album by Miles Davis
Speak Like a Child The Prisoner Fat Albert Rotunda Mwandishi Crossings Sextant Head Hunters Dedication Thrust Man-Child Secrets Third Plane Herbie Hancock
E.S.P._(Miles_Davis_album)
2018 soundtrack album by Justin Hurwitz
"First to Dock" Justin Hurwitz 1:27 12. "Elliot" Justin Hurwitz 0:28 13. "Sextant" Justin Hurwitz 1:45 14. "Squawk Box" Justin Hurwitz 1:54 15. "Searching
First_Man_(soundtrack)
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)
January 1926 by Crosby Lockwood & Son The Sextant Simplified A Practical Explanation of the Use of the Sextant at Sea, Published 1 January 1973 by Thomas
O._M._Watts
1969 studio album by Miles Davis
Speak Like a Child The Prisoner Fat Albert Rotunda Mwandishi Crossings Sextant Head Hunters Dedication Thrust Man-Child Secrets Third Plane Herbie Hancock
Filles_de_Kilimanjaro
1995 popular science book
History of longitude Latitude Lunar distance (navigation) Prime Meridian Sextant World Geodetic System John Harrison Longitude wins Bafta hat-trick, BBC
Longitude_(book)
1604 commentary in Kannada
Equatorial ring Equatorial sundial Globe Gnomon Mural instrument Quadrant Sextant Sundial Triquetrum Water clock Yantraraja Concepts Astrological sign Axial
Ganitagannadi
Canadian literary scholar, critic and professor
Times, November 25, 2003 Kenner, Hugh (Summer 1983). "Pascal Elucidated". Sextant. No. 6. pp. 27–32. Retrieved 25 January 2026. Jones, Lisa; Mielke, Stephen
Hugh_Kenner
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
SEXTANT
SEXTANT
SEXTANT
SEXTANT
Female
Danish
, elf battle maid.
Girl/Female
Indian
Clever
Girl/Female
Tamil
Knowledge
Boy/Male
Hindu
Moon crested Lord
Girl/Female
Bengali, Indian, Kannada
One who Never been Crushed
Girl/Female
Muslim
Pearl
Boy/Male
Tamil
Undorstood
Boy/Male
Indian
Shining, Bright, Name of the Sun
Girl/Female
Tamil
Bishnu | பிஷà¯à®¨à¯à®‚
The protector, An important Hindu God
Boy/Male
Arabic, Muslim
Court of the Prophet Muhammad
SEXTANT
SEXTANT
SEXTANT
SEXTANT
SEXTANT
n.
The constellation Sextans.
n.
The movable limb of a sextant or other angular instrument.
n.
The sixth part of a circle.
n.
A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so graduated that a certain convenient number of its divisions are just equal to a certain number, either one less or one more, of the divisions of the instrument, so that parts of a division are determined by observing what line on the vernier coincides with a line on the instrument.
v. t.
To mark divisions on; to graduate; as, to divide a sextant.
n.
An instrument for determining the size or distance of inaccessible objects by means of two reflectors on a common sextant.
n.
An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9O¡, but being itself the eighth part of a circle. Cf. Sextant.
n.
An instrument for measuring angular distances between objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's quadrant, but usually of metal, with a nicer graduation, telescopic sight, and its arc the sixth, and sometimes the third, part of a circle. See Quadrant.
n.
An instrument formerly used at sea for taking the altitudes of heavenly bodies, now superseded by the sextant; -- called also cross-staff.
n.
An instrument for taking altitudes, as a quadrant, sextant, etc.
n.
A constellation on the equator south of Leo; the Sextant.
n.
Specifically, the act of measuring, with suitable instruments, some magnitude, as the time of an occultation, with a clock; the right ascension of a star, with a transit instrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc.
n.
An instrument formerly used for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; -- so called because the observer turned his back to the body observed.