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Earth radius

Earth radius (denoted as R🜨 or RE) 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 about 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).

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Behaviour under coord transformation
scalar
Common symbols
R🜨, RE, a, b, aE, bE, ReE, RpE
Dimension
L {\displaystyle {\mathsf {L}}}
In SI base units
m
Other names
terrestrial radius
SI unit
meters

Topics to explore

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Overview

Introduction

Location-dependent radii

Global radii

Topographical radii

Derived quantities: diameter, circumference, arc-length, area, volume

Nominal radii

History

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Map overview Semantic statistics

Earth radius

Nodes122
Edges121
Triples17
Avg. degree1.98
Density0.016393
Components1

How this topic connects Entity context

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Earth radius

Top relations

related to Nominal radii · 7
Earth radius → Earth, Equatorial, In, International Astronomical Union, Jupiter, The, These
see also · 3
Earth radius → Earth, Science, Sciences
Behaviour under coord transformation · 1
Earth radius → scalar
Common symbols · 1
Earth radius → R🜨, RE, a, b, aE, bE, ReE, RpE
Dimension · 1
Earth radius → L {\displaystyle {\mathsf {L}}}
In SI base units · 1
Earth radius → m
Other names · 1
Earth radius → terrestrial radius
SI unit · 1
Earth radius → meters
Value · 1
Earth radius → Equatorial radius: a = (6378137.0 m) Polar radius: b = (6356752.3 m)

Important terminology Word statistics

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Important terminology

radius earth ellipsoid earth's polar equatorial surface radii mi curvature km mean sphere displaystyle spheroid values value defined equator geocentric

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Earth radiusBehaviour under coord transformationscalar1.00infobox
Earth radiusCommon symbolsR🜨, RE, a, b, aE, bE, ReE, RpE1.00infobox
Earth radiusDimensionL {\displaystyle {\mathsf {L}}}1.00infobox
Earth radiusIn SI base unitsm1.00infobox
Earth radiusOther namesterrestrial radius1.00infobox
Earth radiusSI unitmeters1.00infobox
Earth radiusValueEquatorial radius: a = (6378137.0 m) Polar radius: b = (6356752.3 m)1.00infobox
Earth radiusrelated to Nominal radiiIn0.60section
Earth radiusrelated to Nominal radiiInternational Astronomical Union0.60section
Earth radiusrelated to Nominal radiiEarth0.60section
Earth radiusrelated to Nominal radiiThe0.60section
Earth radiusrelated to Nominal radiiThese0.60section

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    Min side: 3
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