General Relativity

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Cosmological Constant

 , where:

 = Cosmological Constant (1/m2)

Deflection of Light by Gravity

 , where:

 = Angle of Deflection

G = Gravitational Constant (m3/(kg*s2))

M = Mass Causing Gravity (kg)

r = Distance from Mass (m)

c = Speed of Light (m/s)

Einstein Field Equations

 , where:

 = Ricci Curvature Tensor

R = Curvature (m)

 = Metric Tensor

Power Lost by a Black Hole

Also known as Stefan–Boltzmann-Schwarzschild-Hawking black hole radiation power law,

 , where:

P = Power lost by Black Hole (W)

 = Dirac's Constant (J*s)

c = Speed of Light (m/s)

 = Pi

Power Radiated by Two Orbiting Bodies

 , where:

P = Power lost (W)

G = Gravitational Constant (m3/(kg*s2))

c = Speed of Light (m/s)

m1 = Mass of body 1 (kg)

m2​ = Mass of body 2 (kg)

r = Distance between bodies (m)

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