Satellite Pass Guide
The ISS and Starlink satellites are visible to the naked eye under the right conditions. This guide explains what to look for, when to look, and where to find precise pass times for your location.
How to See a Satellite Pass
⏰ When to Look
Satellites are only visible at dusk and dawn — when you're in darkness but the satellite is still in sunlight (about 1–2 hours after sunset or before sunrise). The sky must be dark enough but the satellite sun-lit.
👁️ What to Look For
A steady, non-blinking point of light moving smoothly across the sky. Unlike aircraft, satellites don't flash. Unlike stars, they move. The ISS is extremely bright — you'll see it immediately.
🧭 Direction & Elevation
Pass apps give azimuth (compass direction) and elevation (degrees above horizon). A 90° pass goes directly overhead (zenith). A 10° pass barely clears the horizon — harder to see. Look for passes above 40° for best viewing.
🌟 Magnitude
Lower magnitude = brighter. The ISS can reach −5.9 (brighter than Venus). A satellite at magnitude +5 is barely visible to the naked eye in dark skies. Light pollution and moon phase affect visibility.