At 10:30a.m. (EDT) Tuesday morning, comet P/2016 BA14 will pass within 2.1 million miles of the earth.
The emerald green-colored comet will generally require a telescope to be seen, but may even be visible to the unaided eye in southern hemisphere suburbs where light pollution is very low.
Paul Chodas, NASA’s Center of NEO Studies (CNEOS) at the Jet Propulsion Laboratory in Pasadena, says “this will be the third closest flyby of a comet in recorded history. March 22 will be the closest comet P/2016 BA14 gets to us for at least the next 150 years.”