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...

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

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

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

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...

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...

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

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...

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

Earth. By extension, it is also a plane of reference in the equatorial coordinate system. In other words, the celestial equator is an abstract projection...

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...

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

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

Geodetic coordinates are a type of curvilinear orthogonal coordinate system used in geodesy based on a reference ellipsoid. They include geodetic latitude...

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...

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...

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

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...

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

In solar observation and imaging, coordinate systems are used to identify and communicate locations on and around the Sun. The Sun is made of plasma, so...

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...

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...

Orbital mechanics Astronomical coordinate systems Characteristic energy Escape velocity Ephemeris Equatorial coordinate system Ground track Hill sphere Interplanetary...

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...

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