According to the Hubble classification scheme, an E4 galaxy has a(n)
A) disk and central bulge with a smooth light distribution and no spiral arms.
B) irregular shape.
C) round or spherical shape with a smooth light distribution and no disk or central bulge.
D) moderately elliptical shape (a flattened circle) with a smooth light distribution.

Question

Quizplus · Accepted Answer

The Hubble classification scheme categorizes galaxies based on their appearance. An E4 galaxy, according to this scheme, has a moderately elliptical shape, which means it looks like a flattened circle, and it features a smooth distribution of light without any spiral arms or irregularities. This classification falls under the elliptical category in the Hubble sequence, which ranges from E0 (nearly circular) to E7 (highly elongated).

According to the Hubble Classification Scheme, an E4 Galaxy Has