Radius of planetary orbits from number

The Titius—Bode rule is an empirical formula that roughly describes the distances between the planets of the Solar System and the Sun (the average radii of the orbits).

Notes:

  1. This rule fails to predict the correct value of the Neptune’s orbit radius.

Links:

  1. Wikipedia, third formula.

orbit_radius

radius of the planet’s orbit.

Symbol:

r

Latex:

\(r\)

Dimension:

length

planet_number

The value \(-\infty\) corresponts to Mercury, \(0\) to Venus, \(1\) to Earth, \(2\) to Mars, \(3\) to Ceres, \(4\) to Jupyter, \(5\) to Saturn, \(6\) to Uranus, and \(7\) to Pluto.

Symbol:

N

Latex:

\(N\)

Dimension:

dimensionless

first_constant

A quantity which is the free term in the formula.

Symbol:

a

Latex:

\(a\)

Dimension:

length

second_constant

A quantity which is the factor before the exponent.

Symbol:

b

Latex:

\(b\)

Dimension:

length

law

r = a + b * 2^N

Latex:
\[r = a + b 2^{N}\]