This tool allows you to predict the number and brightness of visible satellites from several mega constallation. For details see Lawler, Boley & Rein 2021. The source code of this website can be found on GitHub. Video animations can be found here.
Latitude: Custom North pole (90°N) Canada (50°N) Hawaii (20°N) Equator (0°N) Chile (30°S) South pole (90°S)
Time of year: December Solstice Equinox June Solstice
Time of day: Sunset Nautical dusk 3 hour before midnight 2 hour before midnight 1 hour before midnight Midnight 1 hour after midnight 2 hour after midnight 3 hour after midnight Nautical dawn Sunrise
Albedo:
Effective area (m²):