AFTER DARK
TESS OBSERVATIONS

NINE LIGHTS. DIFFERENT RHYTHMS.

The night
has a pulse.

A point of light is never just a point of light.
Discover the rhythms hiding inside it.

Start the guided journey
Real observations from NASA’s TESS mission.
Depth, colour & texture are illustrative.
Glow contrast amplified.Full window: 32 seconds at 0.75×.

THE LIGHT, MEASURED

A brightness diary

Each point is an observation.

Bring observations one period apart to the same place. The measurements stay the same.

BEHIND THE LIGHT

The observations

These are measured light curves, replayed at an accelerated pace. The glowing stars are visual representations: their sizes, colours, surface texture, depth and positions are illustrative, and glow contrast is amplified independently for each target.

“Trace this light” is a presentational transition: existing sampled observations move from the selected light into their measured chart positions. Their travel paths are not scientific trajectories. Axes return when the points have settled. Calm view removes this transfer, cycle animation and pointer parallax.

At 1× speed each source window is replayed in 24 seconds; slower speeds extend that presentation time. These observations were taken at different times; the lights do not represent a simultaneous sky.

Charts show brightness relative to each star’s median. Cycle stacking moves observations by their phase within the stated period, with a short visual delay between cycles; measured brightness stays fixed. The white line is a median of real measurements in phase bins, not a fitted physical model. Point colours distinguish consecutive cycles.

What this study does not establish

A dip alone does not establish a planet. The L 98-59 example uses the published period and transit reference time of the confirmed planet L 98-59 c. The star’s observations also contain noise and signals from its other planets. TESS processing differs between these products, so chart amplitude is not a direct comparison of intrinsic stellar luminosity.

For β Dor the phase origin is the first retained sample, not maximum brightness. The published ASCII file labels its timestamps BJD without explicitly declaring the time standard. No smooth curve is invented across an observation gap.