What is closest to us is often the hardest to see.

Mapping our local cosmic neighborhood

Chapter 1

The illusion of the local dome

Chapter 2

Measuring the cosmic gap

Chapter 3

Our actual backyard neighbors

Chapter 4

The local bubble and beyond

YOUR GOAL

Master of Mapping our local cosmic neighborhood

Ch 3 · Our actual backyard neighbors

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007skaty Proxima Centauri is the closest star to our solar system.

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007skaty Our Stellar Neighbors

Meet Proxima b, / Our closest star, / Goldilocks zone!

007skaty Red dwarf stars dominate our local cosmic neighborhood.

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007skaty In the constellation Canis Major, the immense energy of Sirius A and Sirius B guided global agricultural calendars

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007skaty Dim red dwarf stars glow faintly alongside our own bright Sun and Moon

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BETA

007skaty Track the sun, moon, and stars to discover how close they are to Earth.

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Fun Fact

Red dwarf stars: If our Sun were replaced by Proxima Centauri, our daylight would be about as bright as a full moon.

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Gossip

Which local stellar neighbor would you want to visit first?

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Quiz

What percentage of stars in our local galactic neighborhood are classified as red dwarfs?

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007skaty Barnard's Star is a nearby red dwarf with uniquely fast motion.

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Quiz

Why is Barnard's Star famous in the field of astronomy?

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Quiz

How long does it take Proxima Centauri to complete one orbit around its companion stars?

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Quiz

Why is Proxima Centauri invisible to the naked eye despite being our closest neighbor?

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Quiz

Roughly how many star systems are located within 15 light-years of Earth?

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Quiz

What is the name of the closest star to our Sun?

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Quiz

What kind of star system is Sirius?

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Quiz

Which star is the brightest in our night sky and sits 8.6 light-years away?

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