Ring galaxy

High school (ages 12+)
Space & Astronomy

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/ring-galaxy

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Who discovered the Ring galaxy?1950
2. What is the scientific classification?Ring galaxy
3. What is the key discoverer?Arthur Hoag
4. How do ring galaxies form?They often form when a smaller galaxy zooms through the middle of a bigger one. The collision creates a ripple that makes new stars pop up in a ring.
5. Why are the stars in the ring so bright?The ring contains many young, massive blue stars that are very bright. Those stars make the ring look shiny and colorful.

Annular structure: A ring-shaped configuration of celestial material, distinct from a central nucleus.
Gravitational disruption: The process by which the gravitational field of one celestial body significantly alters the structure or motion of another.
Density wave: A wave of increased density that propagates through a medium, such as the interstellar medium in a galaxy's disk.
External accretion: The process by which a galaxy accumulates matter from its surrounding environment or from smaller merging objects.