Astronomy Spring Final Exam Review

If one knows the pulsation period of a Cepheid variable star, they can also know the:

• luminosity

• color

• number of partner stars

The spiral arms of the Milky Way are best described as:

• density waves

• permanent structures made of the same consistent stars

• temporary structures that "die" and re-form

The center of the Milky Way is found in the direction of the ______ constellation

• Virgo

• Pisces

• Sagittarius

• Libra

The centers of most galaxies are thought to host:

• supermassive black holes

• stellar black holes

• hypergiant stars

• dust lanes

A mythological story of the spilling of _____ lead to the word "galaxy."

• milk

• water

• lava

• blood

The largest galaxies of the Local Group are: (PICK MORE THAN ONE)

• Milky Way

• Andromeda

• Large Magellanic Cloud

• Small Magellanic Cloud

Hubble's diagram that categorizes the types of galaxies has the appearance of a:

• dish

• spoon

• tuning fork

• shoe

Lenticular galaxies have designation code of:

• SA

• E3

• S0

• SAB

This would be a ______ galaxy.

• spiral

• elliptical

• lenticular

• irregular

This would be a _______ galaxy

• spiral

• peculiar

• barred spiral

• elliptical