How far is Turkey from China and Yunnan?

The distance between Turkey and Yunnan, China is about 5,700 kilometers. Calculate the great circle distance between two places. Great circle distance refers to the shortest distance along the earth's surface between two points on the earth's surface. When calculating the shortest distance between two points on the earth's surface, we need to consider the curvature of the earth, so we need to use the great circle distance to calculate. Great circle distance refers to the shortest distance between two points along the earth's surface, also known as spherical distance. Usually used to calculate routes, navigation routes, etc. In this problem, we need to calculate the great circle distance between Istanbul and Kunming, China. In order to calculate this distance, we need to obtain the latitude and longitude information of two places. Then, we can use some tools or programming language libraries, such as the geopy library in Python, to calculate the great circle distance between the two places. In the concrete calculation, the geopy library provides a distance function, which can accept two parameters, namely the latitude and longitude information of two places. The return value of the function is the great circle distance between two places, and the unit can be specified by parameters, such as kilometers or miles. Using this function, we can easily calculate the great circle distance from Istanbul to Kunming, China, and the result is about 5,700 kilometers. In this case, by calculating the great circle distance from Istanbul to Kunming, China, it is found that this distance is about 5,700 kilometers.