How many cycles of stars are there?
I’m not sure if this is what you are thinking of so please ask again if you need to–I can think of 3 basic types of cycles that stars go through–a life cycle, a pulsational cycle, and an activity cycle. The life cycle of stars, is roughly similar to the life cycle of plants and animals here on Earth. All stars are born, they grow up, get old, and die. There are basically 2 types of stellar life cycles–those that end with the star exploding into a supernova, and those that end with the star slowly expanding and then contracting. It’s the mass of the star that determines what will happen. Some stars have a pulsational cycle–for instance they get brighter and dimmer over periods of time ranging from seconds to years. There are many different types of pulsating or vibrating stars and, in fact, the Sun is one of them. The Sun pulsates with about 10 million different tones of sound, much like a huge musical instrument. The last basic type of stellar cycle is an activity cycle. The Sun is
