Star A and Star B are both 5 pc away, but Star A is at your zenith and Star B is at your nadir. How much more flux does Earth receive from Star A relative to Star B? Assume there are no interstellar clouds between you and each star

Star A and Star B are both 5 pc away, but Star A is at your zenith and Star B is at your nadir. How much more flux does Earth receive from Star A relative to Star B? Assume there are no interstellar clouds between you and each star

The Solar System

10th Edition

ISBN:9781337672252

Author:The Solar System

Publisher:The Solar System

Chapter1: Here And Now

Section: Chapter Questions

Problem 10P

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Concept explainers

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.

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