How Much Mass Is Needed to Make a Body Round? *
AbstractUse your Internet sleuthing skills to learn about solar system objects. Create a table of measurements of moons and asteroids in order to determine if there is a size threshold for roundness. A good source of information would be an online guide such as The Nine Planets (Arnett, W.A., 2006). You'll find information about planetary satellites, including dimensions and accompanying pictures. From the pictures, classify the satellites and asteroids according to how round they are. Can you think of a way to quantify roundness? See if you can determine what the minimum mass seems to be before solar system objects become spherical (Odenwald, 1997).
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Last edit date: 2017-07-28
- Arnett, W.A., 2006. "The Nine Planets: A Multimedia Tour of the Solar System," [accessed July 31, 2006] http://www.nineplanets.org/.
- Odenwald, S., 1997. "Do you have any science fair suggestions for Middle School students?" Ask the Astronomer, Astronomy Cafe website [accessed July 31, 2006] http://www.astronomycafe.net/qadir/q2077.html.
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