When is the "Great Approach of Mars"? Check out the best time to see it and how to enjoy it!

 

 

When is the "Great Approach of Mars"? Check out the best time to see it and how to enjoy it!

 

 


A)
A great approach occurs once every 15 to 17 years:

It was a hot topic on July 31, 2018: "Mars will come very close to Earth." Earth and Mars revolve around the Sun in different orbits and periods, and their relative positions constantly change. 

The closest distance between Earth and Mars is called the "closest approach." 

Conventionally, the closest approach that occurs when Mars is closest to the Sun (Mars' perihelion) is called the "great approach," and the nearest approach that occurs when Mars is farthest from the Sun (Mars' aphelion) is called the "small approach." 

The apparent diameter (apparent diameter) of Mars is about twice as large between the great and small approaches.

The Earth revolves around the Sun for 365 days, but Mars takes 687 days. Since the Earth's orbital speed is faster, it catches up with Mars every two years and two months. 

At this time, the Earth and Mars are closest to each other. However, Mars's closest approach does not occur at the same time of year and in the same position every time. This is because there is a two-month fraction rather than an annual cycle.

B)
Also, since Mars's orbit is more elliptical than Earth's, the distance between their orbits is not constant, and the distance of the closest approach differs each time. 

Although the closest approach is rare, a near approach occurs every 15 to 17 years. By the way, the next close approach will be on September 11, 2035.

C)
When will the Earth and Mars be closest to each other? :

Mars's apparent diameter at the close approach in 2035 will be about 1.7 times that of the nearest approach in 2025.

The period when the Earth and Mars are closest to each other is about two years and two months (780 days). This cycle repeats itself, but the time and location of the closest approach and the distance between Earth and Mars differ.

 

 

 

When is the "Great Approach of Mars"? Check out the best time to see it and how to enjoy it! [Illustrated Astronomy Stories So Interesting You'll Not Sleep]

https://love-spo.com/article/z_astronomy-007/#goog_rewarded