Determining planetary positions in the sky for $pm 50$ years to an accuracy of $stackrel{<}{_{sim}} 1^{circ}$ with a calculator

Tanmay Singal and Ashok K. Singal

Astronomy and Astrophysics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380 009, India.

In this paper, we describe a very simple method to calculate the positions of the planets in the sky. The technique used enables us to calculate planetary positions to an accuracy of $stackrel{<}{_{sim}} 1^{circ}$ for $pm 50$ years from the starting epoch. Moreover, this involves very simple calculations and can be done using a calculator. All we need are the initial specifications of planetary orbits for some standard epoch and the time periods of their revolutions.