Rho Cas and its kin: Study provides new insights into the mysterious outbursts of yellow hypergiants

A recent five-year study has uncovered new insights into the properties of yellow hypergiants, a heavy star class known for their dramatic outbursts. Scientists focused on Rho Cassiopeiae (Rho Cas), HR 8752, and HR 5171A, revealing that Rho Cas exhibits cyclical outbursts every 10 to 40 years, with large fluctuations of its surface temperature.