The osculating orbit of an astronomical object is the gravitational Kepler orbit.
This is the normal orbit it would have around a body, supposing it were not perturbed (disturbed) by a third body.
References[change | change source]
- ↑ Moulton, Forest R. 1970.  Introduction to Celestial Mechanics (2nd revised ed). Mineola, New York: Dover. p322–323.