Espace & Étoiles

Age on Other Planets Calculator

Calculate your age in years on each planet in the solar system.

Moon Phase Calculator

Calculate the moon phase for any given date.

Weight on Other Planets

Calculate your weight on other planets.

Sunrise Sunset Calculator

Estimate sunrise and sunset times.

Exoplanet Habitability Calculator

Calculate habitability index for exoplanets.

Your Weight on Other Planets Calculator

Find out how much you would weigh on other planets and moons.

Light Travel Time Calculator

Calculate how long light takes to travel from a star or planet.

Orbital Period Calculator

Calculate orbital period of a moon or satellite.

Black Hole Time Dilation Calculator

Calculate time dilation effect near a black hole.

Escape Velocity Calculator

Calculate escape velocity from a celestial body.

Sunrise and Sunset Time Calculator

Calculate approximate sunrise and sunset times for your location.

Light Distance Calculator

Convert light years to kilometers.

Next Lunar Eclipse Estimator

Estimate next lunar eclipse date.

Gravity Calculator

Calculate gravitational force between two bodies.

Cosmic Redshift Calculator

Calculate cosmic redshift and distance.

Asteroid Impact Calculator

Calculate asteroid impact energy and effects.

Spacecraft Delta-V Calculator

Calculate required delta-v for space missions.

Planetary Escape Velocity

Calculate escape velocity from a planet.

Rocket Delta-V Budget Calculator

Calculate delta-V budget for space mission.

Satellite Orbit Calculator

Calculate satellite orbit properties.

Light Year Converter

Convert distances between light years, kilometers, and miles.

Light Distance Calculator - Light Years

Calculate the distance light travels in a given time period.

Star Luminosity Calculator

Calculate star luminosity from radius and temperature.

Solar Eclipse Calculator

Calculate approximate next solar eclipse timing.

Hubble Distance Calculator

Calculate galaxy distance using Hubble Law.

Interplanetary Travel Time Calculator

Calculate approximate travel time between planets.

Meteor Shower Calculator

Calculate best time to view major meteor showers.

Star Distance (Parallax)

Calculate star distance from parallax.

Rocket Delta-V Calculator

Calculate rocket delta-v.

Solar Energy Output Calculator

Calculate solar panel output by location.

Stellar Parallax Calculator

Calculate stellar distance using parallax.

Solar Irradiance Calculator

Calculate solar irradiance at a given distance.

Binary Star Orbit Calculator

Calculate binary star system properties.

Supernova Remnant Calculator

Calculate supernova remnant properties.

Tidal Force Calculator

Calculate tidal force between celestial bodies.

Satellite Orbital Decay Calculator

Calculate satellite orbital decay rate.

Stellar Magnitude Calculator

Calculate apparent and absolute stellar magnitude.

Schwarzschild Radius Calculator

Calculate Schwarzschild radius of a black hole.

Telescope Resolution Calculator

Calculate telescope angular resolution.

Eclipse Duration Calculator

Calculate eclipse duration.

Stellar Lifespan Calculator

Calculate expected stellar lifespan based on mass.

Moon Phase Angle Calculator

Calculate moon phase angle and illumination.

Weight on Planets Calculator

Calculate your weight on different planets in the solar system.

Comet Position Calculator

Calculate approximate comet distance from the Sun.

Apparent Magnitude Calculator

Calculate apparent magnitude of a celestial object.

Stellar Evolution Calculator

Calculate expected lifespan of a star based on its mass.

Cosmic Distance Ladder

Convert between cosmic distance units.

Sunset Direction Calculator

Calculate sunrise/sunset azimuth angle.