Reminiscing about Star Wars the other day, I wondered about Luke’s planet having two suns.
Maybe it’s just because in my neighborhood, the nearest star is 4ly distant, but I tend to think of the proper spacing for stars as being measured in light years, rather than, say, miles, or kilometers, or football fields.
But I know that binary stars are a thing, and they consist of two stars orbiting an intermediate point. On a scale of even one ly, this probably makes no sense, the inverse square property of gravitational force being what it is, so I ask the astronomy mavens of the SDMB:
How far apart is it realistic to call the two suns of Tatooine? And speaking of binary systems with planets, do the planets orbit both stars as a unit, or do they travel in a sort of figure-eight path?