Suppose an Asteroid Is Discovered with an Elliptical Orbit, a Period

question 309

Multiple Choice

Suppose an asteroid is discovered with an elliptical orbit, a period of exactly 1 year, and perihelion 0.5 au from the Sun. Using Kepler's third law, how far from the Sun is this asteroid at aphelion? (Drawing a diagram of the orbit, including the Sun, will help.)

• A) 2.5 au
• B) 2.0 au
• C) 1.0 au
• D) 1.5 au

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