ARTi

How stars are born and die

Chapter 1

The stellar nurseries

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Chapter 2

The long adult life of stars

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Chapter 3

The dramatic deaths of small stars

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Chapter 4

Supernovas and cosmic leftovers

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YOUR GOAL

Master of How stars are born and die

Ch 2 · The long adult life of stars
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artiteacher Why massive blue giants burn fast

Jul 12

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artiteacher Why tiny red dwarfs live longest

Jul 12

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artiteacher

artiteacher The stable main sequence lifetime

Jul 12

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artiteacher

artiteacher How the stellar thermostat regulates temperature

Jul 12

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Tiny Star Tales

artiteacher Tiny Star Tales

Jul 10

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artiteacher

artiteacher Main sequence stars

Fighting off the gravity, we are burning hydrogen to hold our ground and shine!

Jul 10

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artiteacher
Why massive blue giants burn fast

artiteacher Why massive blue giants burn fast

Jul 10

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artiteacher
Fun Fact

Sun energy output: The energy produced by the Sun core every second equals about 100 billion hydrogen bombs.

Jul 10

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artiteacher
Why tiny red dwarfs live longest

artiteacher Why tiny red dwarfs live longest

Jul 10

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artiteacher
Glossary
main sequence (noun)
A major grouping of stars on the Hertzsprung-Russell diagram containing most of the known stellar population. Our Sun has resided in this stable, hydrogen-fusing stage for the last 4.6 billion years.

Jul 10

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Quiz

Which type of star has the longest lifespan, potentially living for trillions of years?

Jul 10

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artiteacher
Gossip

If you could visit any star system, which would you choose?

Jul 10

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artiteacher
Quiz

What star in the Orion constellation is a famous example of a hot, short-lived blue giant?

Jul 10

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artiteacher
Quiz

What is the scientific term for the balance between gravity pulling inward and gas pressure pushing outward in a star?

Jul 10

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artiteacher
Quiz

How long has our Sun been in its stable main sequence phase?

Jul 10

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artiteacher
Quiz

What is the name of our closest stellar neighbor, which is a red dwarf star?

Jul 10

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artiteacher
Quiz

What is the stable phase of a star's life called where it spends most of its time?

Jul 10

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artiteacher
Quiz

Why do massive blue giant stars have much shorter lifespans than smaller stars?

Jul 10

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artiteacher
Quiz

What stellar class is our Sun categorized as based on its temperature and size?

Jul 10