The distance from the Sun to the nearest star is about 4 x 1016 m. The Milky Way galaxy (shown) is roughly a disk of diameter 1021 m and thickness ~ 1019 m. Find the order of magnitude of the number of stars in the Milky Way. Assume the distance between the Sun and our nearest neighbor is typical. Figure P1.31 The Milky Way galaxy.NA SA

The expression for the required number of stars is,

Answered: Figure P1.31 The Milky Way galaxy. NA…

Science

Physics

Figure P1.31 The Milky Way galaxy. NA SA

Astronomy

1st Edition

ISBN:9781938168284

Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff

Chapter19: Celestial Distances

Section: Chapter Questions

Problem 7E: While a meter is the fundamental unit of length, most distances traveled by humans are measured in...

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The distance from the Sun to the nearest star is about 4 x 10¹⁶ m. The Milky Way galaxy (shown) is roughly a disk of diameter 10²¹ m and thickness ~ 10¹⁹ m. Find the order of magnitude of the number of stars in the Milky Way. Assume the distance between the Sun and our nearest neighbor is typical.

Figure P1.31 The Milky Way galaxy.
NA SA

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