फ्रेम ड्रैगिंग कैलकुलेटर — सूत्र

Lense-Thirring Frame Dragging

A rotating massive body drags the surrounding spacetime, causing gyroscopes to precess.

Omega_LT = 2GJ / (c^2 r^3)

*G* = gravitational constant

*J* = angular momentum of the central body

*c* = speed of light

*r* = orbital radius

This effect was confirmed by Gravity Probe B to within about 19% of the predicted value for Earth.

Satellite at 630 km altitude around Earth (r = 7e6 m, J_Earth = 7.07e33 kg m2/s).