Imagine two stars orbiting each other as they age. Toward the
end of their lives their surfaces and atmospheres will grow and
begin to merge into a common envelope. Explore how the age and
gravitational potential of the system changes the shapes of the
stars. You can explore the shape of the merged system by using the
gravitational potential control which ignores the individual
identities of the stars.
This simplified model shows the evolution of the individual stars
to where they both reach the first Lagrange point (L1), which is
the gravitationally neutral point between them. More complicated
events, such as mass transfer or the merging of the stars, will
occur beyond L1, but they are not represented by this
graphic. Created by Jeff Bryant (jeffb@wolfram.com)
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