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Horizontal coordinate system
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#	Item
101	Build a Simple Sextant Purpose: To measure the height (altitude) of a celestial object above the horizon. To observe the apparent motion of stars, the Moon, planets, or comets by noting changes in altitude over a period Add to Reading List Source URL: solarscience.msfc.nasa.gov Language: English - Date: 2006-04-21 12:57:30 Science Celestial navigation Technical drawing Sextant Compass Protractor Angle Plumb-bob Horizontal coordinate system Navigation Technology Measuring instruments
102	Procedure for Measuring the Altitude Using Two Theodolites Add to Reading List Source URL: endeavours.org Language: English - Date: 2013-10-10 14:21:59 Surveying Cartography Theodolite Navigation Measuring instruments Azimuth Horizontal coordinate system Laser rangefinder Protractor Measurement Technology Geodesy
103	Birriel and Adkins, JAAVSO Volume 38, [removed]A Simple, Portable Apparatus to Measure Night Sky Brightness at Various Zenith Angles Add to Reading List Source URL: unihedron.com Language: English - Date: 2013-09-01 16:42:59 Optics Sky brightness Light pollution Naked eye Sky Azimuth Background Airglow Horizontal coordinate system Observational astronomy Astronomy Physics
104	Procedure for Measuring the Altitude Using Two Theodolites Add to Reading List Source URL: endeavours.org Language: English - Date: 2013-10-10 12:04:44 Surveying Cartography Theodolite Navigation Measuring instruments Azimuth Horizontal coordinate system Laser rangefinder Protractor Measurement Technology Geodesy
105	CanVis Distance Calculations This document offers general guidelines on how to estimate the height of a feature or object in CanVis given its distance from the camera and actual height. Please note that there are many ot Add to Reading List Source URL: csc.noaa.gov Language: English - Date: 2013-07-24 16:10:17 Event horizon Line-of-sight propagation Camera lens Physics Astronomy Celestial coordinate system Horizon Horizontal coordinate system
106	A Navigation Solution Involving Changes to Course and Speed George H. Kaplan U.S. Naval Observatory Abstract In a previous paper [1], an approach to celestial navigation was presented that allows a vessel’s latitude, l Add to Reading List Source URL: aa.usno.navy.mil Language: English - Date: 2011-09-22 14:00:49 Celestial navigation Algorithm Longitude Horizontal coordinate system Parameter Aerospace engineering Cartography Navigation Mathematics Least squares
107	The Motion of the Observer in Celestial Navigation George H. Kaplan U.S. Naval Observatory Abstract Conventional approaches to celestial navigation are based on the geometry of a stationary observer. Any motion of the ob Add to Reading List Source URL: aa.usno.navy.mil Language: English - Date: 2011-09-22 14:00:49 Celestial navigation Horizontal coordinate system Azimuth Celestial observation Declination Longitude Sextant Cardinal direction Celestial coordinate system Navigation Aerospace engineering Exploration
108	N G S G E O D E T I C TO O L K I T, PA R T 5 Horizontal Time-Dependent Positioning Richard Snay Estimated ITRF00 Horizontal Velocities Add to Reading List Source URL: geodesy.noaa.gov Language: English - Date: 2012-10-24 15:16:20 Navigation Measurement Surveying GPS Datum World Geodetic System Geodetic system International Terrestrial Reference System Geographic coordinate system Geodesy Cartography Geophysics
109	N G S G E O D E T I C TO O L K I T, PA R T 5 Horizontal Time-Dependent Positioning Richard Snay Estimated ITRF00 Horizontal Velocities Add to Reading List Source URL: www.ngs.noaa.gov Language: English - Date: 2012-10-24 15:16:20 Navigation Measurement Surveying GPS Datum World Geodetic System Geodetic system International Terrestrial Reference System Geographic coordinate system Geodesy Cartography Geophysics
110	Determining the Position and Motion of a Vessel from Celestial Observations George H. Kaplan U.S. Naval Observatory Abstract Although many mathematical approaches to the celestial fix problem have been published, all of Add to Reading List Source URL: aa.usno.navy.mil Language: English - Date: 2011-09-22 14:00:49 Celestial navigation Algorithm Least squares Longitude Horizontal coordinate system Normal distribution Numerical analysis Global Positioning System Navigational Algorithms Navigation Technology Science

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