Universe: Stars And Galaxies
6th Edition
ISBN: 9781319115098
Author: Roger Freedman, Robert Geller, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 17, Problem 2Q
To determine
The reason for requirement of 6 months to make a measurement of a star’s parallax.
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Chapter 17 Solutions
Universe: Stars And Galaxies
Ch. 17 - Prob. 1QCh. 17 - Prob. 2QCh. 17 - Prob. 3QCh. 17 - Prob. 4QCh. 17 - Prob. 5QCh. 17 - Prob. 6QCh. 17 - Prob. 7QCh. 17 - Prob. 8QCh. 17 - Prob. 9QCh. 17 - Prob. 10Q
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What is the advantage of measuring a parallax distance to a star as compared to our other distance measuring methods?arrow_forwardVerify that if two stars have a difference of five magnitudes, this corresponds to a factor of 100 in the ratio (b2b1) ; that 2.5 magnitudes corresponds to a factor of 10; and that 0.75 magnitudes corresponds to a factor of 2.arrow_forwardWhat is the defining difference between a brown dwarf and a true star?arrow_forward
- If two stars are in a binary system with a combined mass of 5.5 solar masses and an orbital period of 12 years, what is the average distance between the two stars?arrow_forwardStar A and Star B have different apparent brightnesses but identical luminosities. If Star A is 20 light-years away from Earth and Star B is 40 light-years away from Earth, which star appears brighter and by what factor?arrow_forward. A star"s position in the sky against distant background objects has shifted by 0.4" in 6 months it returned where it was. what is the stellar parallax p of this star? Ans. p=0.2" b. How far is this star from the Sun?arrow_forward
- The parallax of star Canopus is 0.033 and its apparent visual magnitude is -0.72. What is its absolute visual magnitude?arrow_forwardYou measure a star to have a parallax angle of 0.04 arc-seconds. What fraction of a degree is this?arrow_forwardA star is observed to have a parallax of 0.05". If we were to send a radio signal towards this star how much time would it take for the signal to reach the star?arrow_forward
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