- The equatorial plane is the plane of Earth's equator12. When projected outwards to the celestial sphere, it defines the celestial equator1. The celestial equator is the fundamental plane of the equatorial coordinate system using spherical coordinates2. In the cycle of Earth's seasons, the equatorial plane runs through the Sun twice a year: on the equinoxes in March and September1.Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The plane of Earth's equator, when projected outwards to the celestial sphere, defines the celestial equator. In the cycle of Earth's seasons, the equatorial plane runs through the Sun twice a year: on the equinoxes in March and September.en.wikipedia.org/wiki/EquatorThe equatorial coordinate system using spherical coordinates. The fundamental plane is formed by projection of Earth 's equator onto the celestial sphere, forming the celestial equator.en.wikipedia.org/wiki/Equatorial_coordinate_system
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See all on WikipediaThe fundamental plane is the plane of the Earth's equator. The primary direction (the x axis) is the March equinox . A right-handed convention specifies a y axis 90° to the east in the fundamental plane; the z axis is the north polar axis. See more
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects. It may be implemented in spherical or rectangular coordinates, both defined by an See more
Use in astronomy
A star's spherical coordinates are often expressed as a pair, right ascension and declination, without a distance coordinate. The direction of … See more• MEASURING THE SKY A Quick Guide to the Celestial Sphere James B. Kaler, University of Illinois
• Celestial Equatorial Coordinate System University of Nebraska-Lincoln
• Celestial Equatorial Coordinate Explorers University of … See moreThis description of the orientation of the reference frame is somewhat simplified; the orientation is not quite fixed. A slow motion of Earth's axis, See more
Geocentric equatorial coordinates
There are a number of rectangular variants of equatorial coordinates. All have:
• The origin at the centre of the Earth.
• The fundamental plane in the plane of the Earth's equator. See moreWikipedia text under CC-BY-SA license WEBMar 26, 2024 · Equator, great circle around Earth that is everywhere equidistant from the geographic poles and lies in a plane …
WEBThe equatorial coordinate system is used to specify the positions of celestial objects. It may be implemented in spherical or rectangular coordinates, both defined by an origin at the …
WEB35 rows · The equator is the intersection of the Earth's surface with the plane perpendicular to the Earth's axis of rotation and containing the Earth's center of mass. In more simple language, it is an imaginary …
WEBImagine the Earth's equator extended out to an infinite distance. The equatorial describes the sky as seen from the solar system. Modern star maps almost exclusively use …
WEB1 The Equatorial Coordinate System We can de ne a coordinate system xed with respect to the stars. Just like we can specify the latitude and longitude of a place on Earth, we …
WEBApr 10, 2023 · The geocentric-equatorial coordinate system uses the center of the earth as the origin, and uses the circle of the Earth's equator as the fundamental plane with …
WEBOct 19, 2023 · An equator is an imaginary line around the middle of a planet or other celestial body.It is halfway between the north pole and the south pole, at 0 degrees …
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