# Sun Perturbation - argument of perigee

vCalc Reviewed
dotomega_"Sun" =
Tags:
Rating
ID
vCalc.Sun Perturbation - argument of perigee
UUID
450f9991-ed23-11e3-b7aa-bc764e2038f2

This equation computes the rate of change of the argument of perigee, (dotomega) of an orbit where the rate of change in deg/day results from the Sun's third-body gravitational influence on the orbit.  The inputs to this equation are the orbit inclination (i) and the number of orbit revolutions per day (n).

# Notes

This computation is an approximation, as it neglects the perturbation caused by the change in orientation of the orbital plane relative to the Sun's ecliptic plane.