Category:Octants

**octant**
	measuring instrument used primarily in navigation; type of reflecting instrument
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	Wikipedia
Subclass of	navigational instrument; reflecting instrument; astronomical instrument;
Discoverer or inventor	John Hadley; Thomas Godfrey;
Start time	1731;
Replaces	astrolabe;
Replaced by	sextant;
Authority file
	Q427293; GND ID: 7636526-8
	Reasonator; Scholia; Wikidocumentaries; PetScan; statistics; WikiMap; Locator tool; KML file; Search depicted;

Nederlands: Sextant en Octant

Subcategories

This category has the following 3 subcategories, out of 3 total.

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Media in category "Octants"

The following 37 files are in this category, out of 37 total.

De-Oktant.ogg 1.6 s; 16 KB
2006-11-Lisbonne 033.jpg 3,072 × 2,304; 2.31 MB
67-415-Y Octant, (5839982470).jpg 480 × 640; 81 KB
Cleveland History Center (51592100637).jpg 4,024 × 6,048; 11.95 MB
Electropolis Mulhouse 047.JPG 1,600 × 1,200; 676 KB
Fattura forse italiana, ottante, xvi sec.JPG 1,206 × 1,908; 492 KB
Godfrey-octant.png 1,084 × 607; 7 KB
Grand Turk(35).jpg 1,176 × 900; 446 KB
Hadley's octant.png 1,031 × 806; 55 KB
Hadley's quadrant, or octant, Jonathan Sisson, London, 1735, with sand glass with protective cover, England, 1600s - Putnam Gallery - Harvard University - DSC07907.jpg 3,628 × 4,859; 8.59 MB
Hadley's reflecting quadrant.png 1,800 × 1,397; 83 KB
Hamburg Museum 1908,503.jpg 850 × 1,024; 488 KB
Jean-François Trébuchet Maison Victor Hugo 27122012.jpg 1,604 × 2,165; 2.68 MB
Kommandørgård - Octant.jpg 1,920 × 2,560; 1.76 MB
Musée d'histoire de Nantes - 142 - Octant.jpg 2,848 × 4,272; 3.56 MB
Musée d'histoire de Nantes - 143 - Octant.jpg 2,848 × 4,272; 3.51 MB
Musée d'histoire de Nantes - 455 - Octant.jpg 2,848 × 4,272; 3.28 MB
Musée d'histoire de Nantes - 456 - Octant.jpg 2,848 × 4,272; 3.91 MB
Musée d'histoire de Nantes - 457 - Octant.jpg 2,848 × 4,272; 3.52 MB
Musée de l'Histoire Maritime de Bordeaux 02.jpg 6,000 × 4,000; 11.34 MB
Musée de l'Éphèbe - Objet du Jeanne-Elisabeth 42.jpg 6,000 × 4,000; 13 MB
Musée de l'Éphèbe - Octant.jpg 4,000 × 6,000; 12.95 MB
Negus Night Octant.png 1,826 × 2,066; 4.71 MB
Octant (AM 643640-1).jpg 1,608 × 1,688; 188 KB
Octant (AM 643640-2).jpg 1,608 × 1,816; 283 KB
Octant (AM 643640-5).jpg 1,484 × 748; 231 KB
Octant or Hadley quadrant, by Spencer, Browning & Rust, London, England, c. 1790-1810, ebony, bone, brass - Royal Ontario Museum - DSC00258.JPG 3,240 × 4,320; 4.34 MB
Octant pinnula and horizon mirror.jpg 781 × 1,071; 58 KB
Octant Sneek.jpg 2,434 × 1,824; 1.08 MB
Octant, George Adams, London, c. 1760 - Museu da Ciência da Universidade de Coimbra - University of Coimbra - Coimbra, Portugal - DSC09126.jpg 3,428 × 4,652; 5.91 MB
Octant-notepad.jpg 994 × 1,010; 68 KB
Octant-scale-and-index.jpg 1,293 × 785; 68 KB
Octante del siglo XVIII. Museo Naval de Madrid.jpg 2,667 × 4,000; 5.39 MB
Oktant.jpg 1,252 × 1,282; 329 KB
Royal presentation octant, made by Jean Baptiste Magnie, dedicated to King Louis XVI, c. 1786, brass, mahogany, glass - Peabody Essex Museum - DSC06648.jpg 3,595 × 4,706; 6.11 MB
Thinktank Birmingham - object 1956S00623(1).jpg 768 × 1,024; 83 KB
Thinktank Birmingham - object 1956S00623(2).jpg 768 × 1,024; 99 KB