The binary star system in the constellation Corona Borealis -- "northern crown" -- is normally too dim to see with the naked eye. - The white dwarf and red giant -There are only around 10 recurring novas in the Milky Way and surrounding galaxies, Starrfield explained. Their size disparity is so huge that it takes T Coronae Borealis's white dwarf 227 days to orbit its red giant, Starrfield said. The two are so close that matter being ejected by the red giant collects near the surface of the white dwarf. "You simply have to go out and look in the direction of the Corona Borealis," Krautter said.

Source: The Star November 04, 2024 17:13 UTC