Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 3, Problem 13P
To determine
The extend of prominence on the Sun’s disk during solar eclipses, whether the prominences can be seen if we use protective glasses.
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The smallest detail visible through Earth-based telescopes is about 1 arc second in diameter. What linear size is this on the Moon?
1. These images were taken six months apart, first when Earth was as far to one side of Alpha Centauri as it can get and again when Earth was as far to the other side of Alpha Centauri as it can get. Consequently, the baseline between the two observing positions is how many AU across? Answer: 1.7 arcsec
USE 1.7 arcsec NOT 2.946
2. First, convert this to kilometers using your measurement of how many kilometers are in an AU.
3. Now convert the baseline to kilometers using the true value for the number of kilometers in an AU.
4. Calculate the distance to Alpha Centauri using parallax and the true baseline in kilometers.
5. Google and record the true value.
6. Calculate your percent error
7. Discuss significant sources of error
Chapter 3 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 3 - Why are most of the constellations that were...Ch. 3 - Prob. 2RQCh. 3 - Which is the asterism and which is the...Ch. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - What does the word apparent mean in apparent...Ch. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Could a solar powered spacecraft generate any...
Ch. 3 - If a lunar eclipse occurred at midnight, where in...Ch. 3 - If Earth had no atmosphere, what color would the...Ch. 3 - If the Moon orbited Earth from North Pole to South...Ch. 3 - Why do solar eclipses happen only at new moon? Why...Ch. 3 - Why isnt the corona visible during partial or...Ch. 3 - Which has the larger angular diameter in the...Ch. 3 - What is the angular diameter of the Moon in the...Ch. 3 - Why cant the Moon be eclipsed when it is halfway...Ch. 3 - Why are solar eclipses separated by one Saros...Ch. 3 - How could Thales of Miletus have predicted the...Ch. 3 - Will an eclipse occur in February 2025? In July...Ch. 3 - How do we know? Some people think science is like...Ch. 3 - Pretend the Moons orbit around Earth is a perfect...Ch. 3 - Identify the phases of the Moon if on March 20 the...Ch. 3 - Identify the phases of the Moon if at sunset in...Ch. 3 - What fraction of the Moons surface area is the far...Ch. 3 - About how many days must elapse between...Ch. 3 - Tonight you see a waning crescent in the night...Ch. 3 - If on March 1 the Moon is full and is near Famous...Ch. 3 - How many times larger than the Moon is the...Ch. 3 - Use the small-angle formula to calculate the...Ch. 3 - Prob. 10PCh. 3 - At perigee, the Moon is closer than average by...Ch. 3 - Examine the list of upcoming lunar eclipses in...Ch. 3 - Prob. 13PCh. 3 - If a solar eclipse occurs on October 3: (a) Why...Ch. 3 - A total eclipse of the Sun was visible from Canada...Ch. 3 - Prob. 16PCh. 3 - When will the eclipse seasons occur during the...Ch. 3 - Examine Figure 3-16. List the letter S for each...Ch. 3 - Arrange the following in order of increasing...Ch. 3 - Prob. 2SOPCh. 3 - Look at the Chapter 2 Concept Art: The Sky Around...Ch. 3 - To take the photos that are combined on the...Ch. 3 - Look at the Chapter 3 Concept Art: The Phases of...Ch. 3 - Look at the Chapter 3 Concept Art: The Phases of...Ch. 3 - Use the photos in Figure 3-1 as evidence to show...Ch. 3 - Prob. 6LTLCh. 3 - Prob. 7LTLCh. 3 - Prob. 8LTLCh. 3 - What evidence of the Saros cycle can you see in...Ch. 3 - The accompanying cartoon shows a crescent moon....Ch. 3 - This photo shows the annular eclipse of May 30,...
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- In countries at far northern latitudes, the winter months tend to be so cloudy that astronomical observations are nearly impossible. Why can’t good observations of the stars be made at those places during the summer months?arrow_forwardVenus can be as bright as apparent magnitude −4.7 when at a distance of about 1 AU. How many times fainter would Venus look from a distance of 1 pc? What would its apparent magnitude be? Assume Venus has the same illumination phase from your new vantage point. (Hints: Light follows an inverse square law as does gravity, review Section 5-1c; also, review the definition of apparent visual magnitudes, Chapter 2.) (Note: 1 pc = 2.1 × 105 AU.)arrow_forwardExamine the list of upcoming lunar eclipses in Table 3-1. What fraction of years have two eclipses?arrow_forward
- The smallest detail visible through Earth-based telescopes is about 1 arc second in diameter. What linear size is this on the Moon? (Hint: Use the small-angle formula, Eq. 3-1.)arrow_forwardIf you observed the Solar System from the nearest star (distance = 1.3 parsecs), what would the maximum angular separation be between Earth and the Sun? (Note: 1 pc is 2.1105 AU.) (Hint: Use the small-angle formula in Reasoning with Numbers 3-1.)arrow_forwardWhy do lunar eclipses typically last much longer than solar eclipses?arrow_forward
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