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Calculating The Milky Way galaxy contains
between 200 and 400 billion stars. Estimate the
number of stars in a cluster of 30 galaxies similar
in size to the Milky Way. Your answer should
consist of a low estimate and a high estimate,
both expressed in scientific notation.

——I NEED HELP ASAP!! PLEASE

Sagot :

The number of stars range between 6 * 10^9 stars and 1.2 * 10^10 stars.

What is the number of stars?

We know that a galaxy is composed of many stars. The stars in the galaxy as we saw from the question, using the milky way as a template may have between 200 and 400 billion stars.

The number of stars could be obtained as the product of the number of galaxies and the number of stars in the lower and the upper limits.

Number of stars in the lower estimate = 200 * 10^6 * 30 = 6 * 10^9 stars

Number of stars in the higher estimate = 400  * 10^6 * 30 = 1.2 * 10^10 stars

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