When making the inquiry "What number of stars are there in the universe?" it's critical to recognize the universe in general and the noticeable universe. Since the universe was conceived 13.8 billion years back, we can just watch protests up to a specific separation from Earth — light from more far off items hasn't had sufficient energy to contact us yet. What's more, to reply "what number of stars are there," we should restrain the talk to what we can watch.
