Why is there an asterisk in Luohe on the map?

There is an asterisk in Luohe on the map to indicate that the location has been visited and collected. Amap is China's leading provider of digital map content, navigation and location service solutions. The five-pointed star on it means that you have been to Luohe and have collected the place. If the user does not need this collection, he can choose to cancel the collection.