31. Jefferys specialized in astrometry, celestial mechanics , and astrophysics, including the kinematics and dynamics of astronomical bodies. 32. Such a simulation must take into account many details of celestial mechanics including perturbations by the planets. 33. From 1971 until the beginning of the 80s, she cooperated with the Special Chair of Celestial Mechanics . 34. While contributing to celestial mechanics , he introduced the Jacobi integral ( 1836 ) for a sidereal coordinate system. 35. Today we know a little bit more about the world around us, and the particulars of celestial mechanics . 36. Struve's research was first focused on celestial mechanics , in particular precession and other motion within the Solar System. 37. For nearly tean years, she was assistant editor of the journal " Celestial Mechanics and Dynamical Astronomy ". 38. And so the science of celestial mechanics was born, allowing people to predict things like comets hitting Jupiter. 39. Celestial mechanics itself is certainly secure.40. He wrote or edited 18 books, including " Theory of Orbit " and " Adventures in Celestial Mechanics ."
