Saturday · 2 May 2026 · Palo Alto, California
The tools, in action
Eight ways to read the night sky from where you stand. Each is precise, free, and works without an account.
Satellite Passes
Visible passes for ISS, Tiangong, Hubble, and other bright satellites.
Next visible pass · live→
Satellite Transits
When the ISS, Hubble, or Tiangong crosses the disk of the Sun or Moon — by location, with travel-radius search.
5-day forecast · centerline maps→
Eclipse Finder
Solar and lunar eclipses for the next 25 years, by location.
Total solar · 12 Aug 2027→