HD 15558

HD 15558 (HIP 11832) is a massive O-type multiple star system in the constellation of Cassiopeia. It is located in the Heart Nebula in open cluster IC 1805. The primary is a very massive star with 152 M☉ and 660,000 L☉.

HD 15558

HD 15558 (HIP 11832) is a massive O-type multiple star system in the constellation of Cassiopeia. It is located in the Heart Nebula in open cluster IC 1805. The primary is a very massive star with 152 M☉ and 660,000 L☉.