a complete evolution / deorbit of a sun around its stripe full 0 / zero planetary second
exact_zero_divisor is zero_divisor. binary_signal is information_bearing_wave_propagation. ray is vector. proto_star is astronomical_object. protostellar_core is molecular_core. sun is star_not_planet. polaris is pole_star. binary_star is star. subpolar is polar. polaris is star.