Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 17, Problem 1LTL
Volcano Sif Mons on Venus is shown in the radar image in Figure UN 17-7. What kind of volcano is it, and why is it orange in this image? What color would the rock be if you could see it with your own eyes?
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Venus 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 5 pc? Assume Venus has the same illumination
phase from your new vantage point. (Hints: Recall the inverse square law; also, review the definition of apparent visual magnitudes. ote: 1 pc = 2.1 x 10° AU).
times fainter
What would its apparent magnitude be?
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Which of the following statements are true? Choose all that apply.
If light from a star passes through an exoplanet's atmosphere, we can look at the absorption spectra to determine what elements & compounds are in the atmosphere.
The reason astronomers want telescopes with large primary mirrors is to gather as much light as possible.
In crown glass, the index of refraction for red light is 1.512 and for yellow light it is 1.518. Thus in crown glass, red light is slower than yellow light.
If the axes of two polarizers are anti-parallel to each other, then no light will get through.
The glasses for nearsighted people create real images for them to see.
The larger the diameter of an optic is, the smaller the minimum angle it can discern is.
Which of the following statements are true? Choose all that apply.
If light from a star passes through an exoplanet's atmosphere, we can look at the absorption spectra to determine what elements & compounds are in the atmosphere.
For a telescope, increasing fe will decrease the actual size of the image seen by the person looking through the telescope.
In crown glass, the index of refraction for red light is 1.512 and for orange light it is 1.514. Thus in crown glass, red light is faster than orange light.
If unpolarized light is incident on a polarizer, 50% will pass through.
The glasses for nearsighted people create real images for them to see.
The smaller the diameter of an optic is, the larger the minimum angle it can discern is.
Chapter 17 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 17 - Prob. 1RQCh. 17 - Why does Mercury have lobate scarps but Earth,...Ch. 17 - What evidence indicates that plate tectonics does...Ch. 17 - Prob. 4RQCh. 17 - Why are the atmospheres of Venus and Mars mostly...Ch. 17 - Prob. 6RQCh. 17 - Prob. 7RQCh. 17 - Why do astronomers conclude that the crust on Mars...Ch. 17 - Prob. 9RQCh. 17 - Prob. 10RQ
Ch. 17 - Prob. 11RQCh. 17 - Prob. 1DQCh. 17 - Imagine that you visit a planet orbiting another...Ch. 17 - Imagine that a spacecraft has landed on Mercury...Ch. 17 - Prob. 2PCh. 17 - The smallest detail visible through Earth-based...Ch. 17 - What is the maximum angular diameter of Phobos as...Ch. 17 - Phobos obits Mars at a distance of 9376 km from...Ch. 17 - Volcano Sif Mons on Venus is shown in the radar...Ch. 17 - Prob. 2LTL
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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
- Venus 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: Recall the inverse square law, Section 9-2a; also, review the definition of apparent visual magnitudes, Chapter 2.) (Note: 1 pc = 2.1 105 AU.)arrow_forwardWhy isnt the crust of Venus broken into mobile plates as Earths crust is? How do you know?arrow_forwardA new Terrestrial planet has been discovered orbiting a nearby Sun-like star. Astronomers have obtained spectra of this planet and determined that the atmosphere is composed of roughly 99% CO2, and the remaining 1% is mostly N2 and is very thin compared to Earth's atmosphere. Briefly describe how the planet could have developed such an atmosphere.arrow_forward
- Venus 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 5 pc? Assume Venus has the same illumination phase from your new vantage point. (Hints: Recall the inverse square law; also, review the definition of apparent visual magnitudes. Note: 1 pc = 2.1 x 105 AU). times fainter What would its apparent magnitude be?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 7 pc? Assume Venus has the same illumination phase from your new vantage point. (Hints: Recall the inverse square law; also, review the definition of apparent visual magnitudes. Note: 1 pc = 2.1 ✕ 105 AU). What would its apparent magnitude be?arrow_forwardVenus can be as bright as apparent magnitude -4.7 when at a distance of about 1AU. How many times fainter would Venus look from a distance of 7pc? Assume Venus has the same illumination phase from your new vantage point. (Hint: Recall the inverse square law; also, review the definition of apparent visual magnitudes. Note: 1 pc = 2.1 x 10^5 AU _______ times fainter what would it's apparently magnitude be? _______arrow_forward
- What is the maximum angular diameter of the dwarf planet Ceres when it is closest to Earth? Could Earth-based telescopes detect surface features? Could the Hubble Space Telescope? (Hint: Use the small-angle formula, Eq. 3-1.) (Notes: Ceress average distance from the Sun is 2.8 AU and its diameter is 950 km. The best angular resolution of Earth-based telescopes at visual wavelengths is about 1 arc second and of Hubble about 0.1 arc second.)arrow_forwardLook at Figure 21-1. Compare temperature profiles of Venuss and Earths atmospheres. Describe the differences between the two profiles. Figure 21-1 (a) Image of Venus made from an approaching spacecraft using a UV filter designed to bring out small contrast differences in the clouds that completely hide the planets surface. None of these details would be visible to an unaided human eye. (b) The four main cloud layers in the atmosphere of Venus are more than ten times higher above the surface than ordinary Earth clouds. If you could insert thermometers into Venuss atmosphere at different levels, you would find that the lower atmosphere is much hotter than that of Earth, as indicated by the red line in the graph, but temperatures in the two planets upper atmospheres are quite similar.arrow_forwardWe have a lot of good images of the large moons of Jupiter and Saturn from the Galileo and Cassini spacecraft missions (check out NASA’s Planetary Photojournal site, at http://photojournal.jpl.nasa.gov, to see the variety). Now that the New Horizons mission has gone to Pluto, why don’t we have as many good images of all sides of Pluto and Charon?arrow_forward
- What is comparative planetology and why is it useful to astronomers?arrow_forwardThe Hubble Space Telescope images of Pluto in 2002 showed a bright spot and some darker areas around it. Now that we have the close-up New Horizons images, what did the large bright region on Pluto turn out to be?arrow_forwardEarth orbits 1 AU from the Sun, and the Oort cloud extends from about 10,000 to 100,000 AU from the Sun. If you represent Earths orbit around the Sun with a paper plate 4 inches in radius, how far away will the inner edge of the Oort Cloud be? The outer edge? Express your answers in miles.arrow_forward
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