Astronomers Pinpoint One of the Galaxy’s Most Massive Binary Stars

Astronomers refined measurements of NGC-3603-A1, a Milky Way binary with a 93-solar-mass primary and a 70-solar-mass companion orbiting every 3.8 days about 22,000 light-years from Earth. getnews.me/astronomers-pinpoint-one... #massivebinaries #ngc3603