Originally Posted by chris1234
They end up looking like complicated nets or something - they always make me think of stars in space or a map.

Like this?

http://www.physics.sjsu.edu/becker/physics51/images/28_09_Magnetic_filed_lines.jpg

http://www.centauri-dreams.org/wp-content/uploads/2006/07/t_tauri_star_study.jpg