The ultra-long-period Cepheid

The researchers from the Astronomical Observatory of the University of Warsaw discovered the classical Cepheid with the longest pulsation period known in our Galaxy. This variable star is called OGLE-GD-CEP-1884, and is likely the most luminous, youngest, and most massive Cepheid known in the Milky Way. The newly discovered classical Cepheid in the Galaxy, named … Continue reading The ultra-long-period Cepheid