3,400-light-year Sagitta constellation star system features a red giant donating material to a white dwarf companion, causing a persistent nova-like outburst in Mira HM Sge.
European Space Agency shares mesmerizing image of "Cosmic dance of fire and ice", a mysterious star system located 3,400 light-years away in Sagitta constellation. The system consists of a red giant and a white dwarf companion. The red giant donates material to its companion, causing a bright display. Mira HM Sge is an enigma as it surprised astronomers in 1975 with a nova-like outburst that has not faded since, growing hotter and dimmer.
June 15, 2024
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