In the U.S. public land surveying system, a surveyed north-south (i.e. longitudinal) reference line, often hundrends of miles in length, from which ranges are surveyed to the east and west. There are approximately two dozen meridians in the lower 48 states. See also baseline.
An imaginary line circling the earth, passing through the north and south poles; a line of longitude.
An imaginary line in the sky passing from the due south horizon, through the zenith , and on to the due north horizon. Objects are highest in the sky, and thus least affected by atmospheric distortions, when on the meridian.
A great circle passing through the poles along which all points have the same longitude. The prime meridian also passes through the Royal Observatory located in Greenwich, England.
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An imaginary line that begins on the northern point of the horizon, travels up to the observer's zenith, down to the southern point on the horizon.
Lines of longitude representing north-south direction on a globe or map.
The lines running vertically around the globe from pole to pole.
An imaginary circle going around the earth passing through the North and South Pole and thus dividing the earth into two halves. The meridian of the earth is the same distance wherever you measure it.
An imaginary north - south line running around the globe as a part of the coordinate system for locating points on the earth in measurements of degrees east or west of the zero point. This may refer to lines associated with coordinate systems such as the lat-long system, or survey systems such as the PLS.
Any line of longitude. Meridians connect the North and South Pole, and cross the Equator at a right angle.
a great circle passing through the celestial poles and through the zenith of any location on Earth. For planetary observations a meridian is half the great circle passing through the planet's poles and through any location on the planet.
a name for a line of longitude
An imaginary line connecting the north and south celestial poles and passing through the zenith. See celestial sphere for a helpful diagram.
a line running north and south joining points at the same longitude east or west of Greenwich, England. The 141st meridian forms the boundary between the Yukon Territory of Canada and the state of Alaska in the United States.
An imaginary line drawn through the sky from south to north and passing through the zenith. On the astrolabe the meridian is represented by the central vertical line on the front plate. When a star crosses the meridian, it has reached its maximum height for the day. When the sun crosses the meridian, it is noon.
an imaginary circle of constant longitude around the surface of the earth perpendicular to the equator. See also parallel.
North-south lines used in rectangular survey system. Under the U.S. Government Survey System, property is described in reference to this imaginary North-South line of longitude. The principal meridian assigned to a state intersects its base line which is based on a East-West line of latitude.
A great circle on the earth's surface passing through both the north and south poles.
A Great Circle Passing Through Both the Earth's Poles
any of the imaginary lines representing degrees of longitude that pass through the North and South Poles and encircle the earth
On the Earth, an arc, extending from the North Pole to the South Pole, of constant longitude east or west of the Prime Meridian.
In the sky, an arc extending from the North Celestial Pole, through the zenith, to the South Celestial Pole.
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator; "all points on the same meridian have the same longitude"
a circle on the Earth that passes through both poles and any third point of your choice
a great circle, from pole to pole, along which the longitude is the same
a line of what be Meridia online pharmacy anticipated
an arbitrary north-south line used by an astronomer as a zero point from where to take measurements
an astronomic north-south line on the earth's surface
an imaginary line on the earth that runs north and south from pole to pole
an imaginary line that stretches from pole to pole on Earth's surface
a north-south line selected as the zero reference line for astronomical observations
a north-south line used as a reference point
a vertical plane projected for-ward from the poles of the eyeball
great circle of the celestial sphere passing through its poles and the zenith of a given place. It also refers to the hour of noon, or miday, and to a great circle on the surface of the earth passing through the poles and any given place (i.e. the longitude). (See Observations Using a Gnomon and Modeling the Earth-Sun System )
A line on the celestial sphere passing from the North Pole through the Zenith to the South Pole. Can also be the center line of a planetary body drawn through it's poles.
The great circle passing through the celestial poles and the observer's zenith.
A great circle made by passing a plane through the polar axis. Meridians on the earth's surface constitute lines of longitude.
The meridian is the imaginary line in the sky dividing east from west. The meridian runs from north to south through a point directly overhead. An object is at its highest point in the sky when is crosses the meridian (with the exception of objects near the celestial pole which can also cross the meridian at their lowest point when passing under Polaris, the north star). back to the top back to the top
A longitudinal circle, on the celestial sphere, that passes through both celestial poles.
A great circle on the celestial sphere passing through the north and south celestial poles and the zenith (overhead point) of a given place
A set of imaginary lines running north and south and crossing the base line in the government survey system.
an imaginary line of longitude, stretching over Earth's surface from the north pole to the south pole.
An imaginary line drawn over the surface of the Earth between the North and South Poles, used for measuring longitude (east or west position).
an imaginary line connecting a point due south on the horizon with a point due north on the horizon and going through the zenith
an imaginary line that circles the earth, passing through the geographic poles and any given point on the earth's surface. All points on a given meridian have the same longitude. [ return to the top
A meridian is a circular arc (a great circle) of longitude that meets at the north and south poles and connects all places of the same longitude. The prime meridian (0 degrees longitude) passes through Greenwich, England.
A reference line in the sky that goes from one celestial pole to the other and passes through the zenith, dividing the eastern and western halves of the sky.
Great circle on the surface of the Earth passing through the geographical poles and any given point on the Earth's surface. All points on a given meridian have the same longitude.
The imaginary line in the sky that extends from the southern point on the horizon through the zenith to the northern point on the horizon, bisecting the sky into an eastern and western half. Objects are at their highest when they cross the meridian. The Sun is on the meridian at noon, local time. Also a line on the surface of Earth (or another body) that extends from pole to pole.
Any line of longitude running between the poles. The Prime Meridian is used as the baseline for all longitude measurements.
an imaginary line on earth joining the north and south poles, and cutting across the equator at right angle; it is a line of longitude see Greenwich meridian
A line on the earth's surface which follows the shortest distance from pole to pole.
An imaginary great circle on the earth's surface passing through the North and South geographic poles. All points on the same meridian have the same longitude. The Greenwich meridian is 0° longitude.
The vertical plane over an observer that passes directly north-south and straight overhead. One of the 3 fundamental planes defining local space, along with the horizon and the Prime Vertical. See also House.
a great circle on the Earth that passes through the geographic poles.
One of a set of imaginary lines running north and south used by surveyors for reference in locating and describing land under the government survey method of property description.
an imaginary circle on the celestial sphere that connects the zenith to the north (or south) celestial
in the rectangular system, a north-south survey line.
Imaginary line that runs north and south and passes through the earth's poles (longitude line).
A line running vertically from the north pole to the south pole along which all locations have the same longitude. The Prime Meridian (0) runs through Greenwich, England. From the Prime Meridian, measures of longitude are negative to the west and positive to the east up to 180, halfway around the globe.
An imaginary circle drawn through the North and South poles of the celestial equator.
vertical lines on a map that extend from one pole to the other. There are often referred to as lines of longitude.
a imaginary line on the earth's surface passing through both geographic poles and through any given point on the planet, also called a line of longitude
A north-south line connecting the poles.
The great circle on the celestial sphere that passes through an observer's zenith and the north (or south) celestial pole.
The great circle on the surface of the Earth that passes through a particular place and the North and South Poles of the Earth.
The line of intersection of a surface with a plane perpendicular to that surface at a specified point. When applied to a lens, it also may be defined as a plane that contains the optical axis.
The invisible lines surrounding the Earth that run North to South and are measured in degrees. The Prime Meridian is 0 degrees at Greenwich England.
The imaginary north-south line in the sky that passes through the observer's zenith overhead.
In Chinese Medicine, A Conduit That Can Be Compared To An Imaginary Line (Or Channel) Linking Points On The Body's Surface With Internal Organs In Which Qi (Q.V.) Flows. Traditional Chinese Medicine Defines 14 Main Meridians And Eight Extra Meridians. The Surface Points Are Used In Acupuncture.
A line of longitude running vertically from the north pole to the south pole. Unlike lines of longitude, meridians terminate at the poles. The Prime Meridian, currently called the Greenwich Meridian (0), runs through Greenwich, England.
A line of longitude going north and south from pole to pole measured in degrees from the Prime Meridian or 0°. See Longitude.
A great circle around the Earth, or half of one. A meridian of longitude (or line of longitude) connects the north and south poles. The meridian of longitude that passes through any particular point can be called the north meridian for that point.
the plane containing the observer and both celestial poles, or containing the observer, the zenith and the pole, or, more colloquially, the north-south line at a particular position on the earth.
Arc of constant longitude, passing through the poles.
Imaginary lines running vertically spanning the globe, passing through the Noth and South poles. Lines of longitutde.
A north-south line used to reference lines of a survey.
the maximum circle that passes through the poles, perpendicular to the equator and that passes through a given point. Together with the parallels, the meridians constitute the system of terrestrial and celestial coordinates.
A principle north-south line in the rectangular land survey system.
great circle on the sky that goes through the celestial poles and the zenith point. It separates the daytime motions of the Sun into ``a.m.'' and ``p.m.''. The azimuth of an object on the meridian in the northern sky = 0° and the azimuth of an object on the meridian in the southern sky = 180°.
Meridians are lines of longitude that run from north to south through the prairie provinces at regular intervals. The first meridian, also called the prime meridian, passes through Manitoba along the 98th degree of longitude with each successive meridian occurring four degrees to the west. Three medians divide Alberta: The 4th, 5th and 6th. The 4th meridian forms the border between Alberta and Saskatchewan, the 5th runs through Stony Plain and Calgary (Meridian Road), and the 6th runs through Debolt and Jasper. Land is described as being "West of …." A particular meridian. Therefore, we know that a description of "West of the 4th meridian" lies somewhere in the eastern portion of the province. The horizontal reference point for the Grid System is the US-Canada Border, which follows the 49th parallel.
The great circle on the earth that passes through the North Pole, the point in question, and the South Pole. Meridians intersect the equator at right angles.
A great circle, encircling Earth, that passes through the North and South Poles. A line of longitude.
Subject: Geography A circular arc that meets at the poles and connects all places of the same longitude. more[ Pics List
A line of constant longitude. All meridians are of equal length on the globe.
longitude line. Meridians are imaginary circles that run through both poles.
A longitudinal reference line that traverses the earth in a north-south direction; all meridians circle the earth through the equator and converge at the north and south poles; used by surveyors in describing property under the Government Rectangular Survey Method.
the imaginary north-south line that passes directly overhead (through the zenith).
An imaginary line joining the north and south points of the horizon, passing directly through the zenith. The reference line for a transit.
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