Planetarium

Star catalog

Theme

Display

Limiting magnitude Sun, Moon & planets ISS Galaxies, nebulae & clusters Milky Way Constellation lines Constellation names Star names Alt/Az grid Horizon haze Night mode (red)

Observer

Lat Lon

Time

Date & time

Offset

Data: Yale Bright Star Catalog (5th ed.), IAU WGSN star names, d3-celestial constellation data (BSD-3 notice), ISS orbital elements from CelesTrak. Ephemeris: astronomy-engine (MIT). Orbit propagation: satellite.js (MIT).