Siddhanta Darpana by Samanta is a great treatise on Astronomy. The placing of the five major planets in the Tychonic Model of the solar system is in agreement with the Titius-Bode Law and even with Kepler’s third law. This is a great contribution from Samanta. Epicycles for Solar Anomaly, known as Ugra Phala give correct distances of planets, in both Indian and Greek Astronomy.
Here we give the modern values of the radii of the orbits of the planets and those given in his magnum opus, the Siddhanta Darpana.
Planetary distances in astronomical unit
Planet Distance according to Bode’s law Actual distance
Mercury 0.4 0.387
Venus 0.7 0.732
Earth 1.0 1.0
Mars 1.6 1.524
Asteroid belt 2.8 2.68
Saturn 10.0 9.539
Uranus 19.6 19.19
Neptune 38.8 30.1
Pluto 77.2 39.5
Siddhanta Darpana
Even Odd
quadrant quadrant
Sun 1.00 1.00
Mercury 0.386 0.388
Venus 0.725 0.727
Mars 1.5126 1.5184
Jupiter 5.1428 5.2173
Saturn 9.230 9.4773