Astronomical Distance Travel Time Calculator computes the time to travel to distant parts of space at different velocities.

Sun, Moon, planets, stars, Milky Way's Center and Edge, Andromeda Galaxy)

Astronomical Distance Calculator provides the distance from the Earth to numerous astronomical bodies (e.g.

Exoplanet Calculator contains formulas for studying planets outside of our Solar System.

Astronomy Calculator contains basic formulas for a college level Introduction to Astronomy.

Kepler's 3 rd Law Calc has Kepler's 3 rd law solved for each parameter.

They also include sidereal day and sidereal years. The time units are automatically handled and range from extremely small (nanoseconds) to large including weeks, months, years, decades and centuries. However, users can automatically change the time units on both the inputs to the calculator and the solved answers via the pull-down menu. Time Units: The calculator functions have time duration units that default to days. The mass units are automatically handled and range from extremely small (grains) to truly astronomical including Earth masses, Jupiter masses and Solar masses. However, users can automatically change the mass units on both the inputs to the calculator and the solved answers via the pull-down menu.

Mass Units: The calculator functions have mass units that often default to multiples of the mass of the sun ( solar_mass). The distance units are automatically handled and range from extremely small (nano-meters) to truly astronomical including au, light seconds, light minutes, light years, parsecs, kilo-light years and mega-parses. However, users can automatically change the distance units on both the inputs to the calculator and the solved answers via the pull-down menu. Distance from absolute and apparent magnitudeĭistance Units: The functions have length units that are often defaulted to au ( astronomical units) which is the mean distance from the Sun to the Earth.Blackbody Temperature from Peak Wavelength.Wavelength Shift from Wavelength and Speed.Velocity from shift in Wavelength and Unshifted Wavelength.Relative Luminosity from Relative Temperature and Size.Relative Temperature from Relative Size and Luminosity.Relative Size from Relative Temperature and Luminosity.Mass of extra-solar planet from mass and velocity of star and velocity of planet.

Mass of extra-solar planet from mass of star, radius of star orbit and radius of exoplanet orbit.(S) - size or diameter of astronomical object.

Small Angle Formula Small Angle Formula α = S / D.

(R) - separation distance between the two objects.

Formulae are organized in different tabs to the right as follows: The Astronomy Calculator includes functions that are useful for studying astronomy.

Astro weather calculator