Deep Space Course

Learning observatoryDeep Space Course

Mission control Course map Lessons Labs Practice Journal Settings

Field rule

What was measured? Which model connects it to the claim?

Acquiring signal

All investigations

Interactive laboratory

Find a Planet in Noisy Starlight

Can a one-percent dip reveal an unseen world?

Generate a light curve, search periods in a worker, fold the data, and infer a planet-to-star radius ratio.

Transit search

Injected period3.70 daysTransit depth1.20%Measurement noise0.30%

Predict before moving the control

Raise the noise until the tallest periodogram peak no longer sits at the injected period. Is the next tallest peak evidence—or an alias?

Recovered P

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Recovered depth

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Rp / R★

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Samples

845

Raw light curve

Period search

NO RESULT

Phase-folded signal

WAITING FOR PERIOD

Download Python notebook