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Earth radius (denoted as R 🜨 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).
This template is to show size comparison of Jupiter, Neptune and the Earth alongside extrasolar planets that have their radial size confirmed. {{ Planetary radius | radius = <!--simplified number of the radius (Jupiter equals 100px)--> }}
The Earth-centered, Earth-fixed coordinate system (acronym ECEF), also known as the geocentric coordinate system, is a cartesian spatial reference system that represents locations in the vicinity of the Earth (including its surface, interior, atmosphere, and surrounding outer space) as X, Y, and Z measurements from its center of mass.
The curvature of the Earth is evident in the horizon across the image, and the bases of the buildings on the far shore are below that horizon and hidden by the sea. The simplest model for the shape of the entire Earth is a sphere. The Earth's radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). While "radius ...
R-bar or Earth Radius Vector is an imaginary line connecting the space station to the center of the Earth. V-bar would be the velocity vector of the space station. [ 2 ] The shuttle approached the station along the R-bar line and at a small distance from the ISS, usually around 600 feet (180 meters), the shuttle performed a slow 360° pitch ...
If the template has a separate documentation page (usually called "Template:template name/doc"), add [[Category:Solar System formatting and function templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Solar System formatting and function templates]]</noinclude>