No Service 4:59 PM @ 35% attachments.office.net 1. What is the most common element in the Universe? 2. What is the distance between the Earth and the Sun? (one word) 3. What is the point where the Earth is furthest away from the Sun? 4. What do you call the model that the Sun is at the center of the Universe? 5. What constellation is Polaris observed? 6. What is the phase of the Moon? 7. What do you call the longest day of the year in the southern hemisphere? 8. When is the longest day of the year in the southern hemisphere? 9. Over what latitude is the Sun at 12PM on the vernal equinox? 10. Who first observed sunspots? 11. Who showed that the orbit of planets around the Sun is elliptical? 12. Which planet is second furthest from the Sun? 13. Stars in a constellation are A. physically close to each other. B. usually equal in brightness. C. about the same age. D. about the same distance away. E. in the same part of the sky. 14. Who was the first astronomer to use a telescope? A. Galileo B. Newton C. Brahe D. al- Fazari E. None of these

No Service 4:59 PM @ 35% attachments.office.net 1. What is the most common element in the Universe? 2. What is the distance between the Earth and the Sun? (one word) 3. What is the point where the Earth is furthest away from the Sun? 4. What do you call the model that the Sun is at the center of the Universe? 5. What constellation is Polaris observed? 6. What is the phase of the Moon? 7. What do you call the longest day of the year in the southern hemisphere? 8. When is the longest day of the year in the southern hemisphere? 9. Over what latitude is the Sun at 12PM on the vernal equinox? 10. Who first observed sunspots? 11. Who showed that the orbit of planets around the Sun is elliptical? 12. Which planet is second furthest from the Sun? 13. Stars in a constellation are A. physically close to each other. B. usually equal in brightness. C. about the same age. D. about the same distance away. E. in the same part of the sky. 14. Who was the first astronomer to use a telescope? A. Galileo B. Newton C. Brahe D. al- Fazari E. None of these

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Description: Can you please do 5,6,7,8,9 No Service4:59 PM@ 35%attachments.office.net1. What is the most common element in the Universe?2. What is the distance between the Earth and the Sun? (oneword)3. What is the point where the Earth is furthest away from theS

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 33E: Astronomers are always making comparisons between measurements in astronomy and something that might...

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Similar questions

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Astronomers are always making comparisons between measurements in astronomy and something that might be more familiar. For example, the Hipparcos web pages tell us that the measurement accuracy of 0.001 arcsec is equivalent to the angle made by a golf ball viewed from across the Atlantic Ocean, or to the angle made by the height of a person on the Moon as viewed from Earth, or to the length of growth of a human hair in 10 sec as seen from 10 meters away. Use the ideas in Example 19.2 to verify one of the first two comparisons.
How Do We Know? How is the world you see around you determined by a world you cannot see?
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Number 1 how do we figure out
Astronomy Briefly explain what evidence we can use to learn about the lives of stars even though their lives are far longer than human lives. Why do HR diagrams look different for star clusters of different ages? How do we use the diagram to determine the age of the cluster? How can we estimate how much longer the lifetime of a low-mass star is than the lifetime of a high-mass star? How do we use parallax to measure the distance to stars? Explain the inverse square law for light. If we know the distance to a star, how do we find its luminosity? If we know the luminosity of a star, how do we find the distance? What are apparent magnitude and absolute magnitude? How do they relate to apparent brightness and luminosity? What is meant by spectral type? What spectral type is the hottest? Which is the coolest? What is meant by luminosity class? What are the three basic types of binary stars?
1) We believe that the big bang occurred 13.8 billion years ago. Give 3 reasons why scientists believe the universe is this old.
1. Which of these is true about the Big Bang model? a. The singularity is an established, well-defined part of the model. b. Cosmic expansion stopped at some point in time. c. Part of its proof is the amounts of H and He we have in the universe today. d. The Big Bang was a big explosion that threw matter into many different directions
16. Today, astronomers can detect and measure stellar parallax for thousands of the nearest stars, providing us with direct evidence that Earth really does orbit the Sun. Moreover, these measurements allow us to calculate distances to these relatively nearby stars. If we hope to use parallax to measure distances to even more-distant stars, which of the following telescopes would be most useful?