SKY · SATELLITES & STARLINK
Satellite Tracker & Starlink Train Tonight
Thousands of satellites cross the sky every night — most too faint to notice, but a handful are bright enough to catch the eye. The Space Station, the freshly-launched Starlink “trains,” China's Tiangong station and the Hubble telescope can all be spotted with no equipment if you know when to look. Here's what's passing over you.
What's passing over you tonight?
We'll find the next visible passes of the ISS, the latest Starlink train and other bright satellites over your exact spot — when to look, which way, and how high. Everything is computed in your browser; your location never leaves the device.
What can you see in your sky tonight?
We can work out the next passes of the Space Station, a fresh Starlink "train" and other bright satellites over your exact spot. Your location is used only in your browser to do the maths and is never sent anywhere.
That “string of lights” — the Starlink train
The most-asked “what was that?” of the moment: a tidy row of evenly-spaced lights drifting silently across the sky. It's a batch of newly-launched Starlink satellites, still bunched together before they climb to their working orbits and spread out — visible as a “train” for a few weeks after each launch, best in the hour after dusk.
How crowded is orbit, really?
Beyond the bright handful you can see, the tracked catalogue tells the fuller story: tens of thousands of objects circling the planet, only a minority of them working spacecraft. Here is the on-orbit population by type, and where in low Earth orbit it bunches up.
- Payloads19,73556.8%
- Debris12,52236.1%
- Rocket bodies2,4167%
- Unclassified520.1%
Roughly 36.1% of tracked on-orbit objects are debris — spent stages and fragments, not working satellites.
- 100–200 km2
- 200–300 km90
- 300–400 km1,346
- 400–500 km9,302
- 500–600 km3,511
- 600–700 km1,916
- 700–800 km2,736
- 800–900 km2,924
- 900–1000 km1,906
- 1000–1100 km968
- 1100–1200 km983
- 1200–1300 km773
- 1300–1400 km290
- 1400–1500 km907
- 1500–1600 km425
- 1600–1700 km143
- 1700–1800 km16
- 1800–1900 km8
- 1900–2000 km4
- 18200–18300 km1
The 400–500 km shell is the busiest — the dense low-orbit band that includes the bulk of the Starlink constellation. LEO here means objects with an apogee at or below 2,000 km, placed by the mid-point of their apogee and perigee.
Source: CelesTrak SATCAT — the public satellite catalogue. “On-orbit” counts objects with no decay date on file. Read Jul 25, 2026.
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