best estimate of the number of stars in a typical galaxy
To estimate the number of the Milky Way's stars, astronomers first assume there's nothing special about our region of space. They determine the number of different types stars in this region-then extend this knowledge to the galaxy as a whole.he estimate for the number of stars is about 100 billion stars-plus or minus 50 billion. 2 people found this useful. 1  Easy to Use Pregnancy Due Date Calculators When you are pregnant, the question on everyone's mind is when the baby is due.
According to astronomers, our Milky Way is an average-sized barred spiral galaxy measuring up to 120,000 light-years across. Our Sun is located about 27,000 light-years from the galactic core in the Orion arm. Astronomers estimate that the Milky Way contains up to 400 billion stars of various sizes and brightness.A few are supergiants, like Betelgeuse or Rigel. Many more are average-sized stars like our Sun.The vast majority of stars in the Milky Way are red dwarf stars; dim, low mass, with a fraction of the brightness of our Sun.ccording to astronomers, there are probably more than 170 billion galaxies in the observable Universe, stretching out into a region of space 13.8 billion light-years away from us in all directions.