From Earth, the view of the Milky Way is a thin band of stars across the night sky. The partof the Milky Way Galaxy that is described here is the:
A)Galactic bulge.
B)spiral arm.
C)Galactic disk.
D)Galactic halo.
E)globular cluster.

Question

Quizplus · Accepted Answer

The thin band of stars visible from Earth is the Galactic disk, which is where the majority of the Milky Way's stars and gas are located. The Galactic bulge refers to the central region of the galaxy, the spiral arms are the regions where star formation and dust and gas are concentrated, and the Galactic halo is a spherical region surrounding the disk that contains mostly old stars and dark matter. Globular clusters are groups of very old stars that orbit the galactic center, but they are not the part of the Milky Way that is visible as a band of stars from Earth. The description of a thin band of stars across the night sky is most consistent with the view of the Galactic disk. The other choices are either different regions of the Milky Way Galaxy (bulge, halo, globular cluster) or parts of the structure of the galaxy on a smaller scale (spiral arm).

From Earth, the View of the Milky Way Is a Thin