**Understanding Stellar Parallax:****Question:**Which of the following statements about stellar parallax is true?**Options:**- A. We observe all stars to exhibit at least a slight amount of parallax.- B. Stellar parallax was first observed by ancient Greek astronomers.- C. The amount of parallax we see depends on how fast a star is moving relative to us.- D. It takes at least 10 years of observation to measure a star’s parallax.- E. The closer a star is to us, the more parallax it exhibits.**Explanation:**Stellar parallax is a method used by astronomers to determine the distance of nearby stars. It takes advantage of the apparent shift in position of a star when observed from two different points in Earth's orbit around the Sun. The key relationship is that the closer a star is to Earth, the greater the parallax effect. Therefore, the correct statement is:- **E. The closer a star is to us, the more parallax it exhibits.**Ancient Greek astronomers theorized about parallax, but they did not have the means to observe it due to its minute scale. The phenomenon requires precise measurements over a shorter duration than decades to be detected accurately. The motion of stars relative to us does not directly affect the amount of parallax observed.

Stellar parallax is a method used to calculate the distance between the Earth and a star. It is done…

Which of the following statements about stellar parallax is true? A. We observe all stars to exhibit at least a slight amount of parallax. B. Stellar parallax was first observed by ancient Greek astronomers. O C. The amount of parallax we see depends on how fast a star is moving relative to us.

Which of the following statements about stellar parallax is true? A. We observe all stars to exhibit at least a slight amount of parallax. B. Stellar parallax was first observed by ancient Greek astronomers. O C. The amount of parallax we see depends on how fast a star is moving relative to us.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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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