Ferramentas
ASTRONOMIA
Calculadoras
- Conversion Calculator - NELM (V) to MPSAS (B) systems
- Earth Impact Effects Program
- Impact: Earth!
- Oceanografia (Puertos del Estado)
- Tabla de mareas
Efemérides
Chuvas de meteoros
- FLUXTIMATOR - NASA
- IMO Meteor Shower Calendar
- Major Meteor Showers
- Meteor Showers Online
- Red de Investigación sobre bólidos y meteoritos
Eclipses
Gerais
Satélites artificiais
Sistema Solar
- Astronomical Sky Calendar (by Brian Casey)
- Aurora Sky Station
- Calendar of Planet Positions
- Heavens-Above
- JPL Solar System Dynamics
- Moon Phase and Libration, 2017 (NASA)
- Solar Cycle Prediction (NASA/Marshall Space Flight Center)
- Space Weather Prediction Center (SWPC)
Mapas
Celestes
Terrestres
Tempo
- Hora atual (LNE-SYRTE)
- Space Calendar (JPL)
- StarDate Online
- The ISO 8601 Date Format (by Markus Kuhn)
- The World Clock - Time Zones