In the Cosmos, there is no gravity, the only reference point might be the Sun, it's hard to have a sense of direction,
If you're not careful, it's easy to deviate from the trajectory.
Moreover, the Solar System is like a disk, all planets are revolving around the Sun at different speeds without stopping.
Therefore, the planets in the Solar System do not often line up in a straight line,
According to Wang Ye's judgment, Mercury will soon reach its western elongation.
Elongation is a professional term in astronomy, only Mercury and Venus, which are closest to the Sun, experience elongation,
Western elongation means Mercury will be at the farthest west position relative to the Sun, with the greatest angle to the Sun,
At the moment of western elongation, standing on Earth, Mercury can be seen clearly with an astronomical telescope during the evening, without being disturbed by the Sun.
