SpaceX's Starlink is the largest satellite constellation ever built. Thousands of satellites in low Earth orbit, launching every few weeks. You can see them from your backyard — and OrbitalNodes tells you exactly when and where to look.
Starlink trains — the spectacular "string of pearls" visible after a fresh launch — are automatically detected and highlighted with plain-English directions. The tracker scans Starlink satellites every second and shows elevation, direction, altitude, and visibility status.
Best viewing is during twilight, the 30-60 minutes after sunset or before sunrise when the sky is dark but satellites are still catching sunlight at 550km altitude.
★ OPEN STARLINK TRACKERDuring twilight — roughly 30-60 minutes after sunset or before sunrise. At 550km altitude Starlinks need to be in sunlight while you're in darkness. Our tracker shows real-time visibility and tells you exactly when the next window opens for your location.
When SpaceX launches a batch of 20-60 Starlink satellites, they start in a tight formation that looks like a line of moving dots — a "string of pearls." Over the next 3-5 days they gradually raise their orbits and spread apart. Trains are most visible 1-3 days after launch and then disappear as the satellites reach operational altitude.
Individual Starlinks are magnitude 3-6 — visible to the naked eye in dark skies but not spectacular. A fresh train is more impressive as the eye naturally picks up a moving line of evenly-spaced dots. The ISS is roughly 100 times brighter than a single Starlink, making it far easier to spot.
SpaceX has launched over 10,000 Starlink satellites since the program began in May 2019 — more than every other satellite operator in history combined, and the number grows every week. Around 8,800 are operational at any given time — the remainder are raising orbit, deorbiting, or decayed. The gap represents satellites deliberately deorbited as part of fleet refresh, early failures, or end-of-life reentries — SpaceX replaces older hardware continuously. Licensed to operate up to 15,000 satellites, with launches happening roughly every 2–3 weeks in 2025–26.
With 10,000+ satellites in orbit and growing, Starlinks create bright streaks in long-exposure telescope images and increase the overall brightness of the night sky. SpaceX has added visors and anti-reflective coatings to reduce reflectivity, and newer versions are darker than early ones, but the sheer volume of objects remains a fundamental concern. Professional observatories like Rubin/LSST are developing software filters specifically to remove Starlink streaks from astronomical images.
The ISS is a single large station at 420km altitude, bright enough to see from cities worldwide. Starlinks are small flat-panel satellites at 550km, much dimmer individually, and only spectacular in train formation shortly after launch. The ISS orbits at 51.6° inclination covering most of Earth; some Starlink shells are at different inclinations including polar orbits.
No — Starlinks are internet connectivity satellites. But the same orbital physics applies: large flat surfaces in LEO reflect sunlight during twilight. Reflect Orbital's EARENDIL-1 space mirror deliberately uses this to redirect sunlight. SpaceX's 1M satellite plan — OrbitalSolar.ai → covers space mirror technology in detail.