of seperation is always small it is on a short leash to the Sun Elongation the

# Of seperation is always small it is on a short leash

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of seperation is always small (it is on a “short leash” to the Sun). Elongation: the angle formed by drawing a line from the earth to the sun and a line from the earth to the planet. Question: The maximum elongation angle for Venus is about: 1) 10-20 degrees 2) 30-40 degrees 3) 60-70 degrees

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4) more than 90 degrees Quest ion 4 1 / 1 poin t With regards to brightness and size, what two observational changes should be noticed by a telescopic view when Venus retrogrades? 1) Venus should appear larger in size and appear brighter 2) Venus should appear smaller in size and fainter Quest ion 5 1 / 1 poin t Why is it unlikely you will see those observational changes? Consider the location of the observer on earth and the side of the Venus that would face our planet. Remember these models are not to scale. a) the changes are observable but happen to quickly to be noticed b) it should be observable because the part of the planet being observed is in sunlight c) it should be observable because the earth observer is on the night side of earth looking at the sunlit por d) the dark side of the planet faces an earth observer e) the sun is in the sky at the same time the planet is there f) both b and c explain why it would not be observable g) both d and e explain why it would not be observable Quest ion 6 1 / 1 poin
t In Earth time, approximately how long does the retrograde motion of Venus last? (Earth's orbit is 12 months) 1) about 1 month 2) about 3 months 3) about 6 months 4) 12 months Quest ion 7 1 / 1 poin t ade.html With regards to brightness and size, what two observational changes should be noticed by a telescopic view when Mars retrogrades? 1) Mars should appear larger in size and appear brighter 2) Mars should appear smaller in size and fainter Quest ion 8 1 / 1 poin t Why is it likely you will see those observational changes? Consider the location of the observer on earth and the side of the Mars that would face our planet. Remember these models are not to scale. a) the changes are observable but happen to quickly to be noticed b) it should be observable because the part of the planet being observed is in sunlight

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c) it should be observable because the earth observer is on the night side of earth looking at the sunlit por d) the dark side of the planet faces an earth observer e) the sun is in the sky at the same time the planet is there f) both b and c explain why it would be observable g) both d and e explain why it would be observable Quest ion 9 0 / 1 poin t During retrograde, over time the outer planets will noticeably become fainter in their appearance. Explain the reason for this 1) the separation distances between the planets continues to increase 2) the earth blocks sunlight from reaching the planet at this time 3) the shadow of the earth will cover and darken the planet Question 10 0 / 1 poin t Would a Martian or a Venusian have a better view of Earth retrograding? Defend your choice.
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