GBE

Obtain the gravitational binding energy in joules.

Mass (Kg)

Radius (m)

polytropic index (0 for rocky planets)

What is a polytrope? What value should I use?

References

Chandrasekhar, S. 1939, An Introduction to the Study of Stellar Structure (Chicago: U. of Chicago; reprinted in New York: Dover), section 9, eqs. 90–92, p. 51