Our Solar System 0.0 / 5 ? AstronomyPlanetary SystemsGCSEAQA Created by: eve_hooperCreated on: 06-11-16 19:19 What is the ecliptic? The plane of the Earth's orbit around the sun. 1 of 12 What is the order of the planets? Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto, Eres 2 of 12 What is the mean distance from the Earth to the Sun? 1AU (150 million Km) 3 of 12 What is the shape of planets orbits? Elliptical 4 of 12 What is the band that planets appear to move in called? Zodiacal band 5 of 12 How many degrees is the band that the planets appear to move in above and below the ecliptic? About 8 degrees north and south of the ecliptic 6 of 12 6 problems of manned space exploration -Space adaption syndrome -May become disorientated -zero gravity can result in: brittle bones, muscle fatigue and reduced red blood cell counts -communication delays -radiation risk -psychological risks 7 of 12 What are Mars's moons believed to be? Captured bodies from the asteroid belt 8 of 12 Give 2 characteristics of Neptune's moons -Highly inclined orbits -Orbit Neptune in the opposite direction to which the planet spins. 9 of 12 What is the composition of planetary rings? Ice, rock and dust 10 of 12 What is the rough thickness of planetary rings? 1.5 km (very thin) 11 of 12 What is it thought that planetary rings have come from? Left over debris from the formation of the planets 12 of 12
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