Online Astronomy Tools
Astronomy tools for space calculations and visualizations.
Age on Other Planets Calculator
Calculate your age on Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune
Orbital Velocity Calculator
Calculate orbital velocity, period, and escape velocity for celestial bodies
Escape Velocity Calculator
Calculate escape velocity for planets and celestial bodies
Luminosity Calculator
Calculate stellar luminosity using Stefan-Boltzmann law
Light Year Converter
Convert between light years, parsecs, AU, and other astronomical distances
Orbital Period Calculator
Calculate orbital period and velocity using Kepler's Third Law
Weight on Other Planets
Calculate your weight on different planets and moons in the solar system