Hypergiant

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/hypergiant

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 Hypergiant?Initial masses typically > 25 solar masses, potentially exceeding 100 solar masses
2. What is the luminosity class?Often Ia-0 or Ia+, indicating extreme luminosity
3. What is the associated phenomena?Luminous Blue Variables (LBVs), extreme stellar winds, and core-collapse supernovae
4. How do hypergiants lose so much mass?Hypergiants have very powerful winds that blow out gas at thousands of kilometers per second. These winds create huge clouds of gas around the star, making it look even larger.
5. Why do hypergiants explode as supernovae?When a hypergiant runs out of fuel, its iron core can’t hold up against gravity. The core collapses and a shockwave blasts the outer layers into space, creating a bright supernova.

Stellar Winds: Streams of charged particles ejected from a star's upper atmosphere.
Nucleosynthesis: The process by which new atomic nuclei are created within stars and supernovae.
Circumstellar Envelope: A shell of gas and dust surrounding a star, often formed by mass loss.