a complete evolution / deorbit of the sun around the space chorus 0 / zero year
solar_year is year. sun has no_orbiting_moons beta_crucis is star. sun is over_5_billion_years_old. meteor is non_periodic_translation. zero_sum_game is game. comet is astronomical_object. proto_star is astronomical_object. star_of_bethlehem is astronomical. venus has no_moon