Here is a basic model in my physics project: http://strainer.github.io/fancy#10 http://strainer.github.io/fancy#10 The two objects are the size of our sun, th

Here is a basic model in my physics project: http://strainer.github.io/fancy#10 http://strainer.github.io/fancy#10 The two objects are the size of our sun, the green one represents the black hole. I put in the orbital distance as 2.5 times the Earth to Moon distance as stated in the article, and just tweaked the mass of the black hole (green orb) until the star orbits once every 30 minutes. The mass of the star will hardly matter. The mass of the black hole in this model is 60 solar masses. The model timestep is here is 1 minute, five or ten minutes should still work for this engines integration scheme. Its a Newtonian model, at 0.01 lightspeed there will be innaccuracy but I guess just a few percent in measurements.