An invisible celestial body, along with the sun, was affecting Frost Star's orbit, causing its elliptical orbit to ripple like water waves.
"It's not just strange there. During our observations, we found that Frost Star intermittently appears and disappears. And by calculating the orbits of planets such as Dragon Star, we determined that Frost Star's influence also intermittently appears and disappears," said Director Sullivan.
"What do you mean?" Russell furrowed his brows.
Sullivan explained, "That is, when Frost Star disappears, all the planets' orbits return to normal. When Frost Star appears, all the planets' orbits experience a slight deviation... as if Frost Star's gravity can also appear and disappear."
"Gravity can appear and disappear?"
"Yes, Your Highness, that's also why our observatory has been hesitant to report this. It's too bizarre, inconsistent with any known celestial phenomena. When Frost Star disappears, it's as if it never existed."