Question

How to calculate the number of stars present in a galaxy if the length of the galaxy is given in lightyears..





















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Answer 1

Answer:

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in Simple

The simplest answer may be to estimate the number of stars in a typical galaxy, and then multiply that by the estimated number of galaxies in the universe.

Hope it helps!!

Answer 2

Answer:

The primary way astronomers estimate stars in a galaxy is by determining the galaxy's mass. The mass is estimated by looking at how the galaxy rotates, as well as its spectrum using spectroscopy.