Question 1

The band of the Milky Way, visible at night in dark locations, implies that we live in a galaxy of stars with the shape of a&#10;A) sphere.&#10;B) flattened sphere.&#10;C) disk.&#10;D) straight bar.

Accepted Answer

The Milky Way appears as a band across the sky because we are inside a galaxy that is shaped like a disk, with most of its stars lying in a relatively flat plane.

Question 2

Shapley, in order to understand the shape of our galaxy, used _______.&#10;A) open clusters&#10;B) stellar associations&#10;C) globular clusters&#10;D) black holes

Accepted Answer

Shapley used globular clusters to understand the shape of our galaxy. By mapping their distribution, he was able to determine that the Milky Way is a much larger disk-shaped galaxy with a central bulge, and that the Sun is not located at the center.

Question 3

Our galaxy is roughly _____ across.&#10;A) 50,000 lyr&#10;B) 10,000 lyr&#10;C) 100,000 lyr&#10;D) 20,000 lyr

Accepted Answer

The Milky Way, our galaxy, is roughly 100,000 light-years across, making option C the correct answer.

Question 4

The sun is found in the ____ of the galaxy.&#10;A) bulge&#10;B) halo&#10;C) core&#10;D) disk

Accepted Answer

The Sun is located in the disk of the Milky Way galaxy. This region is characterized by a relatively flat and thin distribution of stars, gas, and dust, where most of the galaxy's new star formation occurs.

Question 5

For our galaxy we like to use ______ to measure such large distances.

Accepted Answer

The answer of For our galaxy we like to use...

Question 6

The elongated area around the core of the galaxy is called the ______.

Accepted Answer

The answer of The elongated area around the core of...

Question 7

Our Milky Way has spiral arms.

Accepted Answer

The Milky Way is a spiral galaxy, characterized by its distinct spiral arms that extend from the galaxy's center.

Question 8

The core of our Milky Way is in the constellation Libra.

Accepted Answer

The core of the Milky Way is actually located in the direction of the constellation Sagittarius, not Libra.

Deck 71: Discovering the Milky Way