AY Honor Planetary Science Answer Key

Planetary Science

Skill Level

2

Year

2025

Version

02.11.2025

Approval authority

South American Division

1

Have the Stars Honor.

For tips and instruction see Stars.

2

What are the three classically used units of measurement for astronomical distance?

3

What is the name and size of the galaxy we live in? What is the closest galaxy to ours?

4

What is a cosmic cloud and what is its relationship with the formation of new stars and planets?

5

What is the Oort Cloud?

6

Give the following characteristics of the planets in the solar system:

6a

Sidereal revolution

6b

Relative gravity

6c

Number of moons

7

What is the importance of meteorites for the study of the universe?

8

Using a telescope (which can be homemade or built from a kit), survey the night sky and identify the visible planets.

References