EBK FOUNDATIONS OF ASTRONOMY
14th Edition
ISBN: 9781337670968
Author: Backman
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Textbook Question
Chapter 18, Problem 2P
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.)
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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 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).
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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
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Venus 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
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what would it's apparently magnitude be? _______
Chapter 18 Solutions
EBK FOUNDATIONS OF ASTRONOMY
Ch. 18 - Why was the nebular hypothesis never fully...Ch. 18 - What produced the helium now present in the Suns...Ch. 18 - What produced the iron and heavier elements such...Ch. 18 - Prob. 4RQCh. 18 - What evidence can you give that disks of gas and...Ch. 18 - Why is the solar nebula theory considered a theory...Ch. 18 - According to the solar nebula theory, why is...Ch. 18 - According to the solar nebula theory, why is there...Ch. 18 - Why does the solar nebula theory predict that...Ch. 18 - What evidence can you give that the Solar System...
Ch. 18 - What planet in the Solar System is larger than the...Ch. 18 - Why is almost every solid surface in the Solar...Ch. 18 - What is the difference between condensation and...Ch. 18 - Why dont Terrestrial planets have ring systems...Ch. 18 - How does the solar nebula theory help you...Ch. 18 - Prob. 16RQCh. 18 - If rocks obtained from the Moon indicate an age of...Ch. 18 - Which is older, the Moon or the Sun? How do you...Ch. 18 - How does the solar nebula theory explain the...Ch. 18 - Did hydrogen gas condense from the nebula as the...Ch. 18 - What happens if a planet has differentiated? Would...Ch. 18 - Order the following steps in the formation of a...Ch. 18 - Which step(s) listed in the previous question can...Ch. 18 - Describe two processes that could melt the...Ch. 18 - What is the evidence that Jupiter and Saturn are...Ch. 18 - Describe two processes that cleared the solar...Ch. 18 - What is the difference between a planetesimal and...Ch. 18 - Does Uranus have enough mass to have formed by...Ch. 18 - What properties of the gas and dust disks observed...Ch. 18 - Why would the astronomically short lifetime of gas...Ch. 18 - Prob. 31RQCh. 18 - Describe three methods to find extrasolar planets.Ch. 18 - Why is the existence of hot Jupiters puzzling?...Ch. 18 - The evidence is overwhelming that the Grand Canyon...Ch. 18 - Prob. 35RQCh. 18 - If you observed the Solar System from the vantage...Ch. 18 - Venus can be as bright as apparent magnitude 4.7...Ch. 18 - What is the smallest-diameter crater you can...Ch. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - You analyze a sample of a meteorite that landed on...Ch. 18 - You analyze a sample of a meteorite that landed on...Ch. 18 - Prob. 8PCh. 18 - Examine Table 18-2. What might a planets...Ch. 18 - Examine Table 18-2. What might a planets...Ch. 18 - Suppose that Earth grew to its present size in 10...Ch. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Prob. 1SOPCh. 18 - Prob. 2SOPCh. 18 - What do you see in this image that indicates this...Ch. 18 - Why do astronomers conclude that the surface of...Ch. 18 - Prob. 3LTLCh. 18 - Prob. 4LTL
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