Correct-Answer to Question #8:
What is Equatorial Forcing?




Q.  What is Equatorial Forcing?

A.  It's a gravitational effect in astronomical bodies where there is a large rotating central mass.

Q.  What is the effect?
A.  A large rotating body causes nearby smaller masses to orbit in its equatorial plane of rotation.

Q.  Does this happen quickly?
A.  No, it's very gradual -- in our Solar System it took around a billion years.

Q.  Does Equatorial Forcing happen elsewhere?
A.  Yes, it's responsible for the shape of the Rings of Saturn. And for the disc shape of our Galaxy, the Milky Way.

Q.  Where can I find out more?
A.  Look at "XT806: What is Equatorial Forcing? ", at http://www.aoi.com.au/Extracts/XT806.htm .





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