V509Cas: A YellowV509Cas: A YellowHypergiant's Stabilitystellar behavior and evolution.Tracking V509Cas reveals insights intoSolar and Stellar AstrophysicsThe Stability of V509Cas: A Yellow Hypergiant's Evolving StateA look into V509Cas's recent stability and behavior as a yellow hypergiant.2025-07-22T02:43:48+00:00 ― 6 min read