Author Question: Name two ways the magnetic fields of Uranus and Neptune defy the normal behavior of planetary ... (Read 13 times)

bobbie · **on:** Jul 27, 2018

Name two ways the magnetic fields of Uranus and Neptune defy the normal behavior of planetary magnetic fields.

What will be an ideal response?

Question 2

Why does gravitational contraction halt in collapsing protostars?

What will be an ideal response?

LP · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

Their fields are tilted very far off the rotation axes of both planets; most other planets have fields within 10 degrees of their poles. Neither field goes directly through the core of its planet, while all other fields seem to originate in the cores of their planets.

Answer to Question 2

Gravitational contraction heats up the protostar in stages 2-4, but once the star has heated up enough, its radiation pressure stabilizes it as nuclear fusion ignites.