Physics A-Level
Transit depth
What Transit depth means in Physics A-Level, as defined for AQA.
Definition of Transit depth
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Reference: AQA
A quantity that relates approximately to the square of the ratio of planet radius to star radius, so a deeper transit indicates a larger planet relative to its star.
Topics that use Transit depth
- Detection of exoplanets (A-level only) (AQA A-Level)
Related terms
- Angular separation
- Baseline
- Doppler shift
- Radial velocity method
- Transit method
- Contrast
- Coronagraphs
- Depth
Using Transit depth in the exam
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