Asteroid 2020 XF4 to flyby Earth at 0.8 LD on December 16
A newly-discovered asteroid designated 2020 XF4 will flyby Earth at a distance of 0.89 LD / 0.00229 AU (342 579 km / 212 868 miles) from the center of our planet on December 16, 2020. This is the 103rd known asteroid to flyby Earth within 1 lunar distance since the…