%0 Journal Article %T Keplerian planetary orbits %A D. Toyoda %A M. Kanehira %A H. Nakazato %J International Mathematical Forum %D 2013 %I %X In this note, KeplerĄ¯s elliptical planetary orbit is generalized by NewtonĄ¯srevolving orbit method. KeplerĄ¯s conclusion is verified by someboundary condition. %K planetary orbit %K true anomaly %U http://www.m-hikari.com/imf/imf-2013/9-12-2013/nakazatoIMF9-12-2013-2.pdf