Mercury crossed in front of the sun disk ... What does it mean? And when will it happen? When will it happen again?

Arab countries and most of the world will be on Monday 11 November 2019 with an important astronomical event, the transit of Mercury in front of the sun disk.

What does it mean to cross Mercury in front of the sun disk?

A natural astronomical phenomenon in which Mercury travels in front of the Sun.Mercury and Venus also circulate in orbits between the Earth and the Sun.These allow them at certain times to cross in front of the Sun's disk, the so-called 'inner conjugation', appearing in the form of two dark spots.

The phenomenon of transit is similar to the phenomenon of solar eclipse when the moon crosses in front of its disk; it obscures to see part or all of it. But the term transit is especially called the passage of planets Mercury and Venus in front of the sun disk, or even the passage of a celestial body or spacecraft .

When does Mercury cross in front of the sun?

Mercury's transit in front of the sun's disk is repeated 13 times in the century, with the next crossing in 2032.

How long will the transit take?

Mercury will travel in front of the sun in the Arab region and the world between one and a half hours.