Newtonian gravitational constant G

E4996

fundamental constant gravitational constant physical constant

The Newtonian gravitational constant G is the fundamental physical constant that quantifies the strength of gravitational attraction between masses in classical and relativistic theories of gravity.

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All labels observed (5)

Label	Occurrences
Newtonian gravitational constant	6
Newtonian gravitational constant G canonical	2
Newtonian constant of gravitation	1
gravitational constant G	1
universal gravitational constant	1

How this entity was disambiguated

This entity first appeared as the object of triple T79917 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Newtonian gravitational constant G
Context triple: [Einstein field equations, constant, Newtonian gravitational constant G]

A. Einstein field equations
The Einstein field equations are the core mathematical framework of general relativity, relating the curvature of spacetime to the distribution of matter and energy.
B. Newton
Newton is a suburban city in Massachusetts known for its residential neighborhoods, strong public schools, and proximity to Boston.
C. FLRW cosmological models
FLRW cosmological models are a family of solutions to Einstein’s field equations that describe a homogeneous and isotropic expanding or contracting universe, forming the standard framework for modern cosmology.
D. Nonantum, Newton
Nonantum is a historic village and neighborhood within the city of Newton, Massachusetts, known for its strong Italian-American heritage and close-knit community.
E. Feynman–Hellmann theorem
The Feynman–Hellmann theorem is a result in quantum mechanics that relates the derivative of an energy eigenvalue with respect to a parameter in the Hamiltonian to the expectation value of the corresponding derivative of the Hamiltonian.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Newtonian gravitational constant G
Target entity description: The Newtonian gravitational constant G is the fundamental physical constant that quantifies the strength of gravitational attraction between masses in classical and relativistic theories of gravity.

A. Einstein field equations
The Einstein field equations are the core mathematical framework of general relativity, relating the curvature of spacetime to the distribution of matter and energy.
B. Newton
Newton is a suburban city in Massachusetts known for its residential neighborhoods, strong public schools, and proximity to Boston.
C. FLRW cosmological models
FLRW cosmological models are a family of solutions to Einstein’s field equations that describe a homogeneous and isotropic expanding or contracting universe, forming the standard framework for modern cosmology.
D. Nonantum, Newton
Nonantum is a historic village and neighborhood within the city of Newton, Massachusetts, known for its strong Italian-American heritage and close-knit community.
E. Feynman–Hellmann theorem
The Feynman–Hellmann theorem is a result in quantum mechanics that relates the derivative of an energy eigenvalue with respect to a parameter in the Hamiltonian to the expectation value of the corresponding derivative of the Hamiltonian.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	fundamental constant ⓘ gravitational constant ⓘ physical constant ⓘ
alsoKnownAs	Newtonian gravitational constant G ⓘ surface form: Newtonian constant of gravitation Newtonian gravitational constant G ⓘ surface form: universal gravitational constant
appearsIn	Poisson equation for Newtonian gravity ⓘ
appearsInEquation	Einstein field equations ⓘ surface form: Einstein field equations (via κ = 8πG/c^4) F = G m1 m2 / r^2 ⓘ g = G M / r^2 ⓘ ∇^2Φ = 4πGρ ⓘ
appearsInLaw	law of universal gravitation ⓘ surface form: Newton's law of universal gravitation
appearsInTheory	law of universal gravitation ⓘ surface form: Newtonian gravity classical mechanics ⓘ theory of relativity ⓘ surface form: general relativity
CODATA2022StandardUncertainty	0.00015×10^-11 m^3 kg^-1 s^-2 ⓘ
CODATA2022Value	6.67430×10^-11 m^3 kg^-1 s^-2 ⓘ
dependsOn	none of the properties of specific materials ⓘ
dimension	L^3 M^-1 T^-2 ⓘ
fieldOfUse	astrophysics ⓘ cosmology ⓘ geophysics ⓘ metrology ⓘ
governs	gravitational attraction between macroscopic bodies ⓘ gravitational attraction between point masses ⓘ strength of gravitational potential Φ ⓘ
hasMeasurementDifficulty	one of the least precisely known fundamental constants ⓘ
hasSign	positive ⓘ
historicalExperiment	Henry Cavendish ⓘ surface form: Cavendish experiment
historicallyMeasuredBy	Henry Cavendish ⓘ
independentOf	choice of units for mass, length, and time (up to conversion factors) ⓘ
isMeasuredBy	Cavendish-type torsion balance experiments ⓘ atom interferometry experiments ⓘ pendulum experiments ⓘ
isPositive	true ⓘ
isUniversal	true ⓘ
quantityType	coupling constant ⓘ
relatedToConstant	Planck constant ⓘ surface form: Planck constant h speed of light c ⓘ
relativeStandardUncertainty	2.2×10^-5 ⓘ
role	quantifies strength of gravitational interaction ⓘ
SIUnit	m^3 kg^-1 s^-2 ⓘ
symbol	G ⓘ
usedFor	calculating orbital dynamics ⓘ determining planetary masses ⓘ modeling gravitational fields of celestial bodies ⓘ
usedToDefine	Planck length ⓘ Planck mass ⓘ Planck time ⓘ

How these facts were elicited