Do meteors come from their namesake constellations?
Chapter 1

The cosmic origin story

Chapter 2

The radiant point illusion

Chapter 3

The myth of the hero

Chapter 4

Tears and science through time

YOUR GOAL

Master of Why we name August's meteors after Perseus

Ch 2 · The radiant point illusion
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sonia Locating the constellation Perseus

Aug 25

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sonia The Radiant Point Illusion

We are moving through parallel lines in the night, but they seem to meet right in Perseus' light

Aug 25

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sonia The concept of a radiant

Aug 25

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Why the name is a locator

sonia Meteor showers are named after the constellation containing their radiant point.

Aug 25

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Locating the constellation Perseus

sonia The Perseid radiant is located within the northern constellation named after the Greek hero Perseus.

Aug 25

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The radiant point illusion
BETA

sonia Trace the meteor trails backward to discover why they seem to start in Perseus.

Aug 25

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Fun Fact

Radiant illusion: Just like driving through a snowstorm makes snowflakes seem to emerge from a single point, Earth's motion creates the meteor radiant.

Aug 25

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Glossary
radiant (noun)
The point in the sky from which a meteor shower appears to originate. This apparent origin lies in the constellation Perseus, giving the annual August meteor shower its name.

Aug 25

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Gossip

Do you prefer stargazing alone in silence or with a big group?

Aug 25

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Quiz

Does a meteor actually originate from the stars inside its namesake constellation?

Aug 25

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sonia The parallax and perspective effect

Aug 25

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Quiz

If a meteor shower had its radiant in the constellation Orion, what would it be named?

Aug 25

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Quiz

What is the best time of night to view the Perseids when the radiant is high?

Aug 25

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Quiz

Which nearby, W-shaped constellation helps stargazers locate the constellation Perseus?

Aug 25

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Quiz

What term do astronomers use for the single point in the sky where meteors appear to originate?

Aug 25

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Quiz

In which direction should stargazers look to find the constellation Perseus rising after midnight in August?

Aug 25

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Quiz

Why do parallel meteor paths appear to diverge from a single point in the sky?

Aug 25

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Quiz

Which Italian astronomer first officially documented that the August meteors radiated from Perseus in 1835?

Aug 25