Mercury in Transit: The History and Future of Measuring Transits

Mercury transits across the Sun

In astronomical parlance, a transit is a celestial phenomenon in which an object passes between us---the observer---in front of a larger object. A transit of Mercury, in which Mercury passes in front of the Sun, is an example of such phenomena that took place on November 11th, 2019 between 7:35 AM EST until 1:04 PM EST