Fontem paginae Constans gravitatis inspicere

{{Capsa tabellaria
	|; Constans gravitatis
	| Dimensiones: {{Dimensiones|longitudo=3|massa=-1|tempus=-2}}
	| Magnitudo: {{val|6.67430|(15)|e=-11|u=[[metrum|m]]<sup>3</sup>&thinsp;[[chiliogramma|kg]]<sup>−1</sup>&thinsp;[[secundum|s]]<sup>−2</sup>}}
}}
[[Fasciculus:NewtonsLawOfUniversalGravitation.svg|thumb|right|upright=1.2|Constans gravitatis {{mvar/G}} in [[lex universalis gravitationis Newtoniana|lege universali gravitationis Newtoniana]].]]

{{Res|Constans gravitatis}} vel '''constans Newtoniana''' vel '''constans gravitationis universalis''' vel aliquando '''constans Cavendishiana''' ({{mvar/G}} notata) est [[quantitas constans|constans]] {{Creanda|en|Proportionality|Proportio|proportionalitatis}} in [[aequatio]]nibus classicis [[gravitatio]]nis et [[relativitas generalis|relativitatis generalis]] adhibita. Ei sunt [[mensura|dimensiones]] {{Dimensiones|longitudo=3|massa=-1|tempus=-2}}. [[Nomen proprium|Nomen]] ''constantis Newtonianae'' in honorem [[physicus|physici]] [[Anglia|Anglici]] [[Isaacus Newtonus|Isaaci Newtoni]] ([[1642]]–[[1727]]) electum est, qui [[lex universalis gravitationis Newtoniana|legem universalem gravitationis]] anno [[1687]] invenit.

In lege Newtoniana talis [[quantitas]] [[Gravitas (physica)|vim attractionis]] inter duo [[corpus|corpora]] ad [[multiplicatio|productum]] eorum [[massa]]rum et ad [[lex quadratica inversa|inversionem quadraticam]] [[spatium|spatii]] inter ea ducit. In {{Creanda|en|Einstein field equations|d|Q273711|aequationes campi Einsteinianae|aequationibus campi Einsteinianis}}, quantitas statuit nexum inter formam [[continuum spatio-temporale|continui spatitemporalis]] et [[tensor (mathematica)|tensorem]] {{Creanda|en|Stress–energy tensor|d|Q876346|energiae momentique tensor|energiae momentique}}.

Ob difficilem [[mensura]]m, pars numeralis usque ad quattuor {{Creanda|en|Significant figures|d|Q1056761|notae numeri significantes|notas numeri significantes}} tantum noscitur. Secundum unitates primarias [[Systema internationale unitatum|Systematis internationalis unitatum]], constanti gravitatis congruunt {{val|6.67430|(15)|e=-11|u=[[metrum|m]]<sup>3</sup>&thinsp;[[chiliogramma|kg]]<sup>−1</sup>&thinsp;[[secundum|s]]<sup>−2</sup>}}.<ref>{{cite web
	| url = https://physics.nist.gov/cgi-bin/cuu/Value?bg
	| title = 2018 CODATA Value: Newtonian constant of gravitation
	| date = [[20 Maii]] [[2019]]
	| work = The NIST Reference on Constants, Units, and Uncertainty
	| publisher = [[National Institute of Standards and Technology|NIST]]
}}</ref>

{{Creanda|en|Cavendish experiment|d|Q18370|Experimentum Henrici Cavendish|Celebre experimentum}} [[Henricus Cavendish|Henrici Cavendish]] fuit prima [[mensura]] quae talem quantitatem certitudinis saltem {{abbr|99%|“Nonaginta novem centesimis (partibus)”}} determinavit.

== Aequationes quae constante gravitatis utuntur ==
; [[Lex universalis gravitationis Newtoniana]]
: <math>F=G\frac{m_1m_2}{r^2}</math>
; {{Creanda|en|Einstein field equations|d|Q273711|Aequationes campi Einsteinianae}}
: <math>G_{\mu \nu} + \Lambda g_{\mu \nu} = \kappa T_{\mu \nu}</math>
; {{Creanda|fr|Constante d'Einstein|d|Q11282513|Constans Einsteiniana}}
: <math>\kappa = \frac{8\pi G}{c^4} \approx 2.0766 \times 10^{-43} \mathrm{\,N^{-1}}</math>

== Notae ==
<references />

{{NexInt}}
{{div col|2}}
* [[Astrophysica]]
* [[Constans Coulombiana]]
* [[Fluctus gravitatis]]
* [[Gravitas (physica)]]
* [[Isaacus Newtonus]]
* [[Relativitas generalis]]
* [[Spatium Calabi-Yau]]
* [[Unitates Planckianae]]
* [[Unitates Stoneyanae]]
* {{Creanda|en|Escape velocity|Velocitas effugiendi}}
* [[Vis aestualis]]
{{div col end}}

[[Categoria:Quantitates constantes physicae]]
[[Categoria:Mechanica caelestis]]
[[Categoria:Notiones in physica]]
[[Categoria:Physica]]
{{Myrias|Physica}}