What is the relationship between Changsha and Xingcheng?

Changsha got the alias "Xingsha" because it is said that the city was named after the star Changsha. Therefore, Changsha City is also called "Star City", and the term "Star City Changsha" is often heard in the media. Changsha urban area was separated from Changsha County (Changsha County and surrounding areas were divided into Changsha City in 1933). Changsha County was later divided into Changsha County and Wangcheng County from east to west. Therefore, these two counties and Changsha urban area share the "Star Sand" ” and the historical and cultural intellectual property rights of “Star City”. Changsha County moved out of the urban area of ??Changsha and built a new county city on an open space, naming it Xingsha Town, which gave the nickname "Xingsha" to Changsha a special geographical direction; and when Wangcheng County established a new development zone, The name "Xingcheng Development Zone" was also used, and Xingcheng Town was further established. This is really a bit embarrassing. When the time came to talk about the two nicknames of Changsha, they actually meant something else, and Changsha In recent years, the county and Wangcheng County will be completely removed from the county and changed into districts, and they are also planning to use the names of "Xingsha District and Xingcheng District"...