Astronomy 150 – Final Name:June 10, 2009 – Spring 2009 TA’s Name & Section:Answer all questions in the space provided. If you have any questions, raise your hand.100 points possible. No calculators or electronic devices of any type.1 (4 pts) What type of meteorite is most likely to be found on the surface of an asteroid that has neverbeen heated?2 (4 pts) Jupiter takes about 12 years to go around the Sun. How long would it take for an asteroid in a2:1 resonance with Jupiter to go around the Sun?3 (8 pts) Explain why there may not have been life on Earth if it rotated on it axis at the same rate asVenus (1 rotation = 243 days).4 (4 pts) What type of meteorite is most likely to be found in the core of a very small (< 100 m) asteroid?5 (4 pts) Describe why the tidal force of Jupiter distorts the shape of Io.6 (8 pts) Explain why there is a close relationship between the composition of a world’s surface and thecomposition of its atmosphere.7 (4 pts) What type of meteorite is most likely to be found on the surface of an asteroid that was volcanicallyactive?8 (4 pts) Describe how the visual appearance of the clouds Jupiter would change if you were to slow downJupiter’s rotation rate.9 (8 pts) Explain why there is so much more material at 5 AU to build Jupiter that there is at 1 AU wherethe Earth formed.10 (8 pts) On the axes below, sketch and label an R-Plot for A - a typical dead world in the outer solarsystem, B - a typical dead world in the inner solar system.LargeSmallCrater SizeR11 (8 pts) Explain why the differences in the two R-Plots you plotted above means that we can not usecrater counts to determine the age of surface in the outer solar system.12 (4 pts) What type of material is most likely to be found on the surface of a very small (< 1 km) KuiperBelt Object?The table on the right shows the radial velocity observationaldata for two stars, just like our Sun, with planets orbitingthem.Planet Period Maximum Radial[Days] Velocity [m/s]A 50 100B 100 2513 (8 pts) On the graph below, draw how the radial velocity of each of the two stars would change over 200days of observations (label each line). Assume that the stars have a radial velocity = 0 m/s on Day 0.050100−50−100050100 150 200Time (days)Radial Velocity (m/s)14 (8 pts) Explain which of the two planets would be the easier to detect.15 (10 pts) I said that kupier belt objects were dark and red. In the space below sketch and label thereflectance spectra of a kuiper belt object and a white piece of notebook paper. You should have one plotwith two spectra plotted.16 (6 pts) I have said many times that “the Sun is the top 99 objects in theSolar system.” Obviously, the Sun is only one object. Explain what I meantby this
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