Stars in the disks of spiral galaxies have orbits that are
A) randomly oriented.
B) constantly getting larger.
C) mostly aligned in the same plane.
D) spiral-shaped.
E) unaffected by dark matter.

Question

Quizplus · Accepted Answer

Stars in the disks of spiral galaxies generally have orbits that are mostly aligned in the same plane, which is characteristic of the disk structure of these galaxies.

Stars in the Disks of Spiral Galaxies Have Orbits That