On any given night, dozens of bright dots glide silently across the sky in a perfectly spaced line. They are not UFOs or planes — they are Starlink satellites, the rapidly expanding low-orbit internet constellation launched by SpaceX. With over 10,000 spacecraft already launched and tens of thousands more planned, Starlink has become the largest satellite constellation in history — and one of the most visible objects in the night sky.
This guide answers the most common questions people search for: how many Starlink satellites are in orbit, how high and how fast they fly, and exactly how to spot them from your backyard tonight.
How Many Starlink Satellites Are in Orbit?
As of early 2026, SpaceX has launched more than 10,000 Starlink satellites across hundreds of missions. Of these, roughly 7,000+ are actively operational and providing internet service. The rest are either in transit to their final orbits, undergoing commissioning, or have been deorbited after reaching the end of their service life.
SpaceX launched the first 60 Starlink satellites in May 2019. Since then, the pace of launches has been relentless — typically one Falcon 9 mission every few weeks, each carrying 20 to 60 satellites at a time.
SpaceX has FCC and ITU regulatory approval for up to 42,000 Starlink satellites across multiple orbital shells. This "Gen2" constellation includes shells at altitudes ranging from 328 km to 614 km, with inclinations designed to cover virtually every inhabited point on Earth — including polar regions. With over 10,000 satellites already launched, Starlink accounts for more than half of all active satellites in Earth orbit.
This scale is unprecedented. For context, the total number of satellites launched by all countries combined in all of history before Starlink was roughly 9,000. Starlink alone could eventually triple that number.
Altitude, Speed & Orbital Specs
Starlink satellites operate in low Earth orbit (LEO) — far closer to the surface than GPS or geostationary satellites. This proximity is what makes their internet service so fast (low latency), and also what makes them so visible from the ground.
At 550 km, Starlink satellites are about 35 times lower than GPS satellites (20,200 km) and 65 times lower than geostationary communication satellites (35,786 km). This dramatically reduces the distance a signal must travel, cutting internet latency from the 600+ ms of geostationary links to as low as 20–40 ms.
Starlink operates at just 550 km — a fraction of GPS altitude (20,200 km) and almost 65× closer than geostationary orbit (35,786 km). Lower altitude = lower latency, more visibility, and more satellites needed for global coverage.
How Starlink Satellites Work
Each Starlink satellite is a flat-panel spacecraft about the size of a large dining table. They carry phased-array antennas to communicate with ground terminals (the Starlink dish customers install at home), and laser inter-satellite links (ISL) on newer versions to relay data between satellites without touching the ground.
Phased-Array Antennas
Electronically steerable arrays allow each satellite to track thousands of ground users simultaneously without physically moving.
Laser Links (ISL)
Gen2 satellites relay data between each other via infrared lasers at the speed of light, reducing dependence on ground stations in remote areas.
Ion Thrusters
Krypton-fuelled Hall-effect thrusters let each satellite raise its orbit from the deployment altitude (~280 km) to its operational shell (~550 km) over several weeks.
Starshield Visor
Later Gen1 satellites include a deployable sunshade that significantly reduces their brightness to limit interference with astronomical observations.
When a Starlink satellite reaches the end of its ~5 year design life, it uses its remaining thruster fuel to lower its orbit. At lower altitudes, atmospheric drag quickly decelerates it further until it re-enters and burns up completely — leaving no debris. This built-in deorbit capability is a key part of SpaceX's approach to orbital sustainability.
How to See Starlink Satellites Tonight
Starlink satellites are among the easiest satellites to observe with the naked eye — especially in the days following a fresh launch, when they travel together in a bright chain before dispersing to their operational orbits.
In normal operation, individual Starlink satellites shine at around magnitude 3 to 5 — comparable to a moderately bright star, and easily visible from suburban skies. They move steadily and silently across the sky in about 3–5 minutes, unlike aircraft which blink and change direction.
- Go to SatFleet Live's Next Passes Open satfleetlive.com/next-passes.html and allow location access when prompted. This calculates passes using your exact GPS coordinates.
- Select "Space Internet" filter In the satellite category dropdown, select Starlink / Internet to show only Starlink passes. You'll see a list of upcoming passes sorted by time and brightness.
- Pick a pass with elevation above 30° Higher elevation passes are brighter and easier to see. Passes below 20° skim the horizon and are often blocked by buildings or trees.
- Step outside 5 minutes before the predicted time Let your eyes adjust to the dark. Face the indicated compass direction (e.g. SW) and look for a steady white dot moving at a constant speed — no blinking, no colour changes.
- Set a browser alert and track it live Press "Notify me" on any pass card to receive a browser notification 10 minutes and 2 minutes before the satellite appears — no account needed. Then open the live map just before the pass to watch it approach your location in real time.
Starlink satellites are only visible when they are in sunlight and you are in darkness — typically within 1–2 hours of sunset or sunrise. At midnight the Sun is too far below the horizon to illuminate them. The highest, brightest passes happen when the satellite's elevation is 50° or above.
What Is a Starlink Train?
A Starlink train is the spectacular sight of a freshly launched batch of Starlink satellites crossing the sky in a tight, equally-spaced line — like a slow-moving string of pearls. It occurs in the days immediately after a SpaceX launch, when all the satellites are still at their initial low deployment altitude (~280 km) before using their thrusters to raise to operational orbit.
At 280 km, the satellites are lower — and therefore brighter and faster-moving — than at their normal 550 km operating altitude. A typical train has 20 to 60 satellites and passes over in 5–8 minutes. After 1–2 weeks, the satellites have spread out and climbed higher, and the train effect disappears.
Track Starlink Live Right Now
SatFleet Live tracks every active Starlink satellite in real time, updated every second from the latest orbital data. Each green dot on the map represents a real Starlink spacecraft, right now, at its actual position above Earth.
You can watch the full constellation — over 7,000 active satellites — move across the globe, zoom in to individual satellites, click any dot to see its exact altitude, speed, and coordinates, or use the 3D mode to view Starlink's orbital shells from space.