Ursae Minoris b orbits its star at such a close distance that it should have been engulfed entirely when the star expanded ...
1712 -- Korea's Joseon Dynasty (1392-1910) government erects a stone monument on Mount Baekdu to mark the border with China, then ruled by the Qing Dynasty.
Jupiter-like planet 8 UMi b, named Halla, orbits its host red giant star Baekdu closely. The red giant's merger with a white ...