The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects. It may be implemented in...

object's location expressed in the equatorial coordinate system can be transformed into the galactic coordinate system. In these equations, α is right ascension...

In astronomy, the ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions, orbits, and pole orientations...

position of stars relative to an observer's ideal horizon. The equatorial coordinate system is centered at Earth's center, but fixed relative to the celestial...

Earth's equatorial region tropical climate the Celestial equator equatorial orbit equatorial coordinate system equatorial mount, of telescopes equatorial bond...

A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude...

specify the location of a point on the celestial sphere in the equatorial coordinate system. An old term, right ascension (Latin: ascensio recta) refers...

right ascension (α) and declination (δ). This pair based the equatorial coordinate system. While δ is given in degrees (from +90° at the north celestial...

Equatorial Coordinate System), the direction cosine vector of the orbiting body from the observation points (from Topocentric Equatorial Coordinate System)...

In mathematics, the polar coordinate system specifies a given point in a plane by using a distance and an angle as its two coordinates. These are the...

is a Cartesian coordinate system (x, y, z). The equatorial coordinate system uses the celestial equator. The ecliptic coordinate system uses the ecliptic...

astronomy are celestial coordinate systems and time. The coordinates of objects on the sky are listed using the equatorial coordinate system, which is based on...

The perifocal coordinate (PQW) system is a frame of reference for an orbit. The frame is centered at the focus of the orbit, i.e. the celestial body about...

A near-equatorial orbit is an orbit that lies close to the equatorial plane of the primary body orbited. Such an orbit has an inclination near 0°. On Earth...

The supergalactic coordinate system is a reference frame for the supercluster of galaxies that contains the Milky Way galaxy, referenced to a local relatively...

The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles...

A planetary coordinate system (also referred to as planetographic, planetodetic, or planetocentric) is a generalization of the geographic, geodetic, and...

ISBN 0-7506-6169-0. Retrieved 2023-01-08. Xu, Guochang; Xu, Yan (2016). "Coordinate and Time Systems". GPS. pp. 17–36. doi:10.1007/978-3-662-50367-6_2. ISBN 978-3-662-50365-2...

altitudes below 300 km (190 mi) decay quickly due to atmospheric drag. Equatorial low Earth orbits (ELEO) are a subset of LEO. These orbits, with low orbital...

specify the location of a point on the celestial sphere in the equatorial coordinate system. The local hour angle (LHA) of an object in the observer's sky...

was used. The World Geodetic System WGS84 ellipsoid is now generally used to model the Earth in the UTM coordinate system, which means current UTM northing...

two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. The declination angle is measured...

telescope equipped with a properly aligned equatorial mount, the observer may also follow the equatorial coordinate system on a star map to "hop" or "slide" along...

is an event, defined only when using either an equatorial or an ecliptic celestial coordinate system, in which any two astronomical objects (e.g. asteroids...

eccentricity vector (a vector pointing towards the periapsis). In the case of equatorial orbits (which have no ascending node), the argument is strictly undefined...

building a system that way are as much historic as technical. Astronomy portal Horizontal coordinate system Equatorial coordinate system Hour angle Pole...

orbit. However, a synchronous orbit need not be equatorial; nor circular. A body in a non-equatorial synchronous orbit will appear to oscillate north...

vehicle to launch a given payload to a given altitude than for a near-equatorial orbit at the same altitude, because it cannot take advantage of the Earth's...

A geostationary orbit, also referred to as a geosynchronous equatorial orbit (GEO), is a circular geosynchronous orbit 35,786 km (22,236 mi) in altitude...

position in the ecliptic coordinate system, convert to the equatorial coordinate system, and convert to the horizontal coordinate system, for the observer's...