My Sky
Personalized stargazing targets, hourly observing conditions from astronomical twilight to dawn, lunar phases, and space station passes.
Realtime Model
DATA: ASTRONOMICAL EPHEMERIS (JEAN MEEUS MODEL)
Hourly Observing Conditions Timeline
Hour-by-hour forecast throughout your astronomical observing window.
DATA: OPEN-METEO GLOBAL SATELLITE RADAR & NUMERICAL WEATHER MODEL
No visible ISS passes predicted over your coordinates during tonight's observing window.
DATA: CELESTRAK NORAD TLE & SGP4 ORBIT PROPAGATOR
Allow 20–30 minutes for your eyes to fully adapt to total darkness. Avoid white flashlights and use dim red light modes only.
Set your telescope outside at least 45 minutes before observing to let mirrors and lenses equalize with ambient temperature.
DATA: SUNSHINE NATE FIELD OBSERVING PROTOCOLS
DATA: ASTRONOMICAL ALMANAC & REALTIME ALTITUDE/AZIMUTH MATRIX