About

Every pass, pinned to your horizon.

TwilightLink exists for a simple frustration: something extraordinary crosses the sky almost every clear night, and almost everyone misses it. We turn raw orbital mechanics into a plain answer — when, where, and how bright — for the exact spot where you stand.

A lone observer beside a telescope on a hilltop at twilight — Fig. 01 — Last light, 56° N

Your horizon is the filter

An ISS pass visible from one side of town can be below the tree line from the other. ISS pass predictions are computed for your exact coordinates — not a regional average — and rocket launches are listed with their verified launch site.

The twilight window does the lighting

Satellites are invisible unless they are sunlit while your ground is dark. That window — after sunset and before sunrise — is when the sky comes alive with moving hardware, and it is where our name comes from.

Live sources, honestly labeled

Rocket launches come live from Launch Library 2 and ISS passes from N2YO, fetched server-side and cached with a refresh timestamp. Planets, meteor showers, and comets come from a curated astronomical calendar — clearly labeled, never claimed as live. Every source shows its last refresh and a freshness indicator.

Catalog

What we track

ISSThe International Space Station — the brightest regular visitor.

STARLINKSatellite trains in their first days after each launch.

PLANETSVenus, Mars, Jupiter, and Saturn at their best placement.

METEORSShower peaks, radiant positions, and hourly rates.

COMETSBinocular and naked-eye comets while they remain in range.

SATELLITESHubble, Tiangong, and other notable hardware.

LAUNCHESLive orbital rocket launches with verified pad and launch site.

The sky keeps its own schedule. We just translate it.

Set your location once and every prediction — direction, elevation, brightness, and timing — is computed for your horizon alone.

See tonight’s schedule