Astronomy Today Volume 2: Stars and Galaxies (9th Edition)
9th Edition
ISBN: 9780134566214
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 1, Problem 6P
To determine
The diameter of Venus (in kilometers) if the angular size of Venus is
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At its nearest approach, Venus comes within about 40 million km of Earth and the semi-major axis of the ellipse which is Venus' orbit is 1.08 × 108 km.
*How distant is Venus at its farthest in km?
How much distance is Mars from the Earth?
The value of "g" at the surface of Mars is 3.7 N/kg. How much would a 60.0-kg person weigh at an altitude above the Martian surface equivalent to the planet's radius?
Chapter 1 Solutions
Astronomy Today Volume 2: Stars and Galaxies (9th Edition)
Ch. 1 - Prob. 1DCh. 1 - Prob. 2DCh. 1 - Prob. 3DCh. 1 - Prob. 4DCh. 1 - Prob. 5DCh. 1 - Prob. 6DCh. 1 - Prob. 7DCh. 1 - Prob. 8DCh. 1 - Prob. 9DCh. 1 - Prob. 10D
Ch. 1 - Prob. 11DCh. 1 - Prob. 12DCh. 1 - Prob. 13DCh. 1 - Prob. 14DCh. 1 - Prob. 15DCh. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - Prob. 9MCCh. 1 - Prob. 10MCCh. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 9P
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- Comet Halley (Fig. P11.21) approaches the Sun to within 0.570 AU, and its orbital period is 75.6 yr. (AU is the symbol for astronomical unit, where 1 AU = 1.50 1011 m is the mean EarthSun distance.) How far from the Sun will Halleys comet travel before it starts its return journey?arrow_forwardIf you lived on Mars, which planets would exhibit retrograde motion like that observed for Mars from Earth? Which would never be visible as crescent phases?arrow_forwardCheck Your Understanding The nearly circular orbit of Saturn has an average radius of about 9.5 AU and has a period of 30 years, whereas Uranus averages about 19 AU and has a period of 84 years. Is this consistent with our results for Halley’s comet?arrow_forward
- One year on Mars is as long as 1.88 years on earth. How many seconds is a Martian year? Please give the correct answerarrow_forwardHow will you determine the distance of Mars from Earth?arrow_forwardWhat would your escape velocity be from a planet with a radius of 3.75 million meters and a mass of 4.44 x 1024kg?arrow_forward
- calculate the periof T of a planet whose orbit has semimajor axis of 10AUarrow_forwardImagine that Earth had two identical Moons, following the same orbit but staying 90° apart. What effects would this have on the ocean tides experienced on Earth?arrow_forwardShow that the areal velocity for a circular orbit of radius r about a mass M is ΔA/Δt =1/2 √GMr . Does your expression give the correct value for Earth’s areal velocity about the Sun?arrow_forward
- A new planet Batuu is discovered in our solar system. Observations reveal that the orbital period of Batuuis TBatuu = 120 Earth days and its diameter is dBatuu = 12 × 106 m. Astronauts are sent in a rocket toexplore the planet further how far is planet batuu from the sun?arrow_forwardIf the gravitational field strength at the surface of Venus is g, at what distance from the surface of Venus will it be 0.25g? State your answer in terms of the radius of Venus.arrow_forwardThe average radius of Mars is 3,397 km. If Mars completes one rotation in 24.6 hours, what is the tangential speed of objects on the planet’s surface? Round your answer to the nearest whole number.arrow_forward
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