🌙 Lunar Calendar
🛰️ International Space Station
Upcoming visible passes from your location. The ISS is visible when sunlit while you are in darkness — usually around dawn or dusk. Look up and you will see a bright dot moving from west to east.
Live TLE from Celestrak. SGP4 computation with satellite.js. Solar illumination with Astronomy Engine.
⭐ Best nights to observe
Automatic ranking of the next 14 nights combining cloud cover, moon phase, and celestial events (active meteor showers and visible conjunctions). Score from 1 to 5 stars.
Cloud cover by Open-Meteo. Astronomical calculations by Astronomy Engine.
☄ Meteor showers
Meteor showers are particles from comets or asteroids that Earth crosses in its orbit. Each year we pass through the same dust regions, so they occur on fixed dates. Check each one and click "Show in panorama" to visualize the radiant in the sky.
✨ Sky conjunctions
A conjunction occurs when two celestial bodies appear very close in the sky from Earth. The angular separation is measured in degrees — your fist at arm's length covers about 10°, a finger about 2°. Conjunctions below 1° are striking to the naked eye. Here are the upcoming ones, computed for your location.
🌞 Space weather
Live data from NOAA Space Weather Prediction Center.
🌊 Coastal tides
Next 7 days
Live data from NOAA Tides & Currents. Datum MLLW (Mean Lower Low Water). Station local time.
What are moon phases?
Moon phases are the apparent changes in the illuminated portion of the Moon as seen from Earth. The complete cycle lasts approximately 29.5 days.
NASA Images
Moon images are generated by NASA using data from the Lunar Reconnaissance Orbiter (LRO), showing the actual appearance of the Moon for each day.