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Exoplanet Transit Light Curves

Tracking the subtle dips in starlight that reveal distant worlds. Each plot shows normalized flux, model fits, and residuals.

How a transit light curve works

When an exoplanet passes in front of its host star, a small fraction of the starlight is blocked. Plotting the star’s brightness over time produces the characteristic “dip” — the transit light curve.

Animation explaining how an exoplanet transit produces a light curve

The light curves below were planned with TransitPlanner ((transits.justinlutz.com) and the data was processed with TransitPlanner Processor.

TOI-3629 b

RA 359.793 · Dec +39.3143 · Trapezoid & limb-darkened fits with residuals

TOI-3629 b transit light curve

TOI-6303 b

RA 46.7807 · Dec +40.1472 · Trapezoid & limb-darkened fits with residuals

TOI-6303 b transit light curve
✦ Justin Lutz

Quality manager by day. Astrophotographer, transit observer, and edge-AI tinkerer by night.

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