Reply To: RW Cephei great dimming

Forums Variable Stars RW Cephei great dimming Reply To: RW Cephei great dimming

Duncan Hale-Sutton

This star has now returned to its normal range of magnitudes. There is a paper that has appeared in the Astronomical Journal ( where the authors have imaged the star during the great dimming using interferometry. They say that they saw an asymmetry in the stars photosphere which suggests a mass ejection of material. This would have cooled and formed a dust cloud that dimmed the star. This is similar to what happened to Betelgeuse in 2020.