# Solar System Orbital Parameters [duplicate]

• FWIW, AstronomicalData[] has a nice bounty of information, including orbit paths and eccentricities. See e.g. this question. On the other hand, there's a certain appeal in using numerical integration instead of merely taking coordinates from an ephemeris... – J. M. will be back soon May 20 '13 at 19:25
• You were asking for positions and velocities. These can be found using AstronomicalData as demonstrated in that question. – Sjoerd C. de Vries May 20 '13 at 21:44