The Sun is currently on the main sequence, and will stay on it for about another 4.5 billion years. Our sun is currently 4.5 billion years old, which is considered middle age for a star/the sun. The...
The Sun is approximately 4.57 billion years old. It started out as a protostar. Over time, it became what it is today a main sequence star, with hydrogen fusion reactions. The Sun will stay in its...