No CrossRef data available.
Published online by Cambridge University Press: 30 March 2016
Previous determinations of precession on the basis of proper motions resulted in corrections to Newcomb’s value of lunisolar precession in the interval per century. From a compilation of several determinations and their reduction to the average of the systems of FK3 and N30 Morgan and Oort (1951) obtained:
per century, where A and B are Oort’s constants. Values in the system of FK4 were derived by Bošniakovich (1965), who applied differential corrections to previous results on the basis of the systematic differences FK4–FK3.