NGC 7793

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/ngc-7793

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. How heavy is NGC 7793?10^5 to 10^6 solar masses
2. What is the morphological classification?Sc (spiral galaxy with relatively loose arms and a small bulge)
3. What is the inclination?Approximately 17 degrees (nearly face-on)
4. Why does NGC 7793 have so many new stars?Its spiral arms contain lots of gas and dust that collapse under gravity, forming young, massive stars and glowing H II regions.
5. Where can we see NGC 7793 from Earth?It is far away in the Sculptor Group, but we can see it clearly because it is almost face‑on, tilted only about 17 degrees.

H II Region: A cloud of ionized hydrogen gas where new stars are being born, often appearing pink in astronomical images.
Galactic Metallicity: The abundance of elements heavier than hydrogen and helium within a galaxy, indicating its star formation history.
Active Galactic Nucleus (AGN): A compact region at the center of a galaxy that has a much higher than normal luminosity, powered by accretion onto a supermassive black hole.