You observe a spiral galaxy with a large central bulge and tightly wrapped arms. It would beclassified an:
A)Sc.
B)Sb.
C)Sa.
D)SO.
E)E7.

Question

Quizplus · Accepted Answer

The large central bulge and tightly wrapped arms indicate that this galaxy is a spiral galaxy. The prominent central bulge suggests that it is not an Sc (which has a smaller bulge), and the tightly wrapped arms suggest that it is not an SO (which has more open arms). The best fit for this description is an Sa galaxy. The large central bulge and tightly wrapped arms indicate a Sa type spiral galaxy. The other options, Sc, Sb, SO, and E7, all have different characteristics such as looser arms, smaller bulges, or different shapes.

You Observe a Spiral Galaxy with a Large Central Bulge