01
Transit photometry detects an exoplanet when it crosses the face of its star and blocks a measurable fraction of starlight.
supportedLearn this concept
Turn the idea into understanding.
Knowledge map
See where this idea fits.
Before this
Prerequisites
After this
Builds toward
Evidence first
Verified knowledge behind the lesson.
02
For a small dark planet crossing a uniformly bright star, the fractional light loss is approximately the square of the radius ratio.
supported03
Kepler and TESS have detected thousands of repeating transit signals.
supported