# Will there be any more planets come into our solar system and make it their “home”?

Could we have more planets come into our system and get trapped by our suns gravitational field and rotate?

Let $$R_n$$ be the number of rogue planets in the galaxy, $$R_{ns}$$ the fraction of rogue planets that may enter the solar system, $$R_e$$ be the probability that one enters the Sun's SOI, $$R_i$$ be the probability that the planet will survive an encounter with a Solar System planet, $$R_s$$ be the percentage of all possible orbits for the rogue planet after the interaction that are long-term stable, and $$R_o$$ be the probability that the rogue planet gets captured into an orbit. Therefore, $$R_o=R_nR_cR_iR_s$$