Mars has two moons, Phobos and Deimos. Phobos orbits Mars with an orbital period of 8 hours while Deimos orbits every 30.3 hours. What are the semi-major axes of each satellite?
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Mars has two moons, Phobos and Deimos. Phobos orbits Mars with an orbital period of 8 hours while Deimos orbits every 30.3 hours. What are the semi-major axes of each satellite?
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- Until recently, the term "planet" had no clear-cut definition. In August of 2006, leading astronomers established new guidelines and declared that Pluto is no longer a planet. Which of the following is either false or least consistent with the new guidelines? Group of answer choices Pluto is by far the largest known object in the Kuiper belt, while Eris is the largest known object in the asteroid belt. A planet must have cleared the neighborhood around its orbit. Pluto is automatically disqualified from being a planet because its oblong orbit overlaps with Neptune's. A planet must have sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a nearly round shape. Pluto and the asteroid Ceres are both now classified as dwarf planets.What is the angular diameter of Saturn (in arc seconds) as seen from Earth when the two planets are farthest apart?Saturn’s moon Mimas has an orbital period of T= 82,800 s at a distance of d= 1.87 × 10^8 m from Saturn. Using Kepler's 3rd law listed below for mass to determine Saturn’s mass. You must show your calculations for credit.
- As you increase your distance away from the surface of the earth, 'G' gets smaller and smaller. True or FalseA spacecraft starts out in an eastward-moving circular orbit around Jupiter. It then burns its engines and increases its speed beyond Jupiter's escape speed - and it does this while it's over Jupiter's night hemisphere. Which of the following might be its destination? Uranus the Sun Mars EarthI would like you to compare the size of some of the largest moons of the solar system to their host planets. Using diameters of 12,700 km, and 140,000 km, 116,000 km for Earth, Jupiter, and Saturn respectively, please provide the ratios of the following moons to their host planets (you can use Table 12.1 from the book to get the diameters of the moons): Luna (Earth's moon), Io, Callisto, Ganymede, Europa, and Titan. After collecting those ratios, please tell me one thing that you notice that stands out about those results.